Which of the Following Research Questions Would Have the Highest

Multiple Choice

Which of the following research questions would have the highest ecological validity?

A) Does instruction in the use of a matrix decrease the amount of time needed to solve logic puzzles?
B) How do people determine how many rolls of wallpaper to use when planning to wallpaper a bedroom?
C) How does time pressure affect people's ability to solve algebra problems?
D) Does culture affect people's likelihood of solving the Buddhist Monk Problem successfully?