Say thank you to multiple professors and doctors

I come up with the following three options to say thank you, but am not satisfied with any of them.

Option 1:

I would like to thank the members of my PhD committee, Prof. A, Prof. B, Prof. C, Prof. D and Dr. E for...

Remark: Repetition of Prof.

Option 2:

I would like to thank the members of my PhD committee, Professors A, B, C, D and Dr. E for...

Remark: Inconsistency between titles: Professor (non abbreviated) vs Dr. (abbreviated).

Option 3:

I would like to thank the members of my PhD committee, Professors A, B, C, D and Doctor E for...

Remark: Doctor E seems unusual to me, as Dr. E is somebody who holds a PhD and not a medical doctor.

Does anybody has better suggestions please?

Thank you very much for your help!

As others have said, how you state these things is not set in stone.

Grammar.CCC offers the following on http://grammar.ccc.commnet.edu/grammar/abbreviations.htm

Titles before names: Mrs., Mr., Ms., Prof., Dr., Gen., Rep., Sen., St. (for Saint) Notice that Miss is not an abbreviation, so we don't put a period after it. Ms. is not an abbreviation, either, but we do use a period after it — probably to keep it consistent with Mr. and Mrs. The plural of Mr. is Messrs. (We invited Messrs. Carter, Lincoln, and Ford.) The plural of Dr. is Drs. (We consulted Drs. Carter, Lincoln, and Ford.) The plural of Mrs. is Mmes or Mmes. (with or without the period).

If it is consistency you seek, then you can use the abbreviation Prof. This readily lends itself to a plural of Profs.

Whether you need to mention their titles is subject to changing fashion both over time and in different countries.

In my current (UK) university I observe that these days titles are rarely used outside extremely formal situations, so that, in the acknowledgements section of a thesis or book, thanks would be given to Bill A, Jane B, Fred C and so forth, irrespective of whether they were doctors, professors, vice-chancellors, presidents etc.

But when I was an undergraduate, Dr A would address Professor B to her face using the title, and would certainly expect the relevant title to be used in a formal document.

And whatever the fashion, if what you write is going to be read by any of those you wish to name, then it would be tactful to use whatever version of their title they like. I know of one distinguished academic in Cambridge who insisted on being referred to as "Professor the Right Honourable Lord A", and of another who would be horrified to be described any more grandly than 'Max P'