Question

Which question about public transportation could best be answered using only prior knowledge?

How many of your classmates use public transit?
How does public transit benefit the environment?
Which cities have the most efficient public transit system?
What type of public transit does your family prefer to use?

Answer 1

The right answer for the question that is being asked and shown above is that: "What type of public transit does your family prefer to use?" This is the question about public transportation could best be answered using only prior knowledge

Answer 2

I believe the answer is: What type of public transit does your family prefer to use?

To answer the question above, people just need to recall their memory on the type of public transit that their family used more often.

Questions such as "How does public transit benefit the environment? " and "Which cities have the most efficient public transit system?" would need an indepth research while question such as "How many of your classmates use public transit?" would need direct counting.