A student measures distance x to be 5 meters and area A to be 25 ft². Discuss with neighbors which of the following could possibly be true; then vote for all that are true.

a) The conversion between meters and feet was done incorrectly.
b) The student made a mistake in measuring either x or A.
c) The student measured x and A correctly, but the units were mixed up.
d) The student's measurements are consistent and correct.