How to change the focus of buttons displayed in prompt dialogs?

When a file is deleted through Command + Option + Backspace combination, the dialog like the image below is prompted to validate the operation with having two buttons which are Cancel, and Delete while the latter is focused by default. So, how can I change the focus to the other button through keyboard as I want to complete this operation without using trackpad?

enter image description here

p.s. OS: macOS Catalina 10.15.1

p.s. I have tried Tab, Space, Option but did not work for me.


You could modify Tab key behaviour from System Preferences: enter image description here