which of these questions is testable? none of these questions are testable. which season is the best? which…

Brief Explanations:

A testable question can be answered through experimentation or data - collection. "Which season has the nicest weather?" can potentially be tested by collecting weather - related data (temperature, precipitation, etc.) for each season and analyzing it. The other questions like "Which season is the best?" and "Which season is your favorite?" are subjective and vary from person to person.

Answer:

Which season has the nicest weather?