Me on this scale drawing problem-

on a scale drawing, a school gymnasium measures 6 inches by 10 inches. the scale used for the drawing is 1 inch equals 10 feet.

what are the actual dimensions of the gymnasium? explain how this was determined.

answer choices

1) 72 ft by 120 ft; multiply by 12 since there are 12 inches in 1 foot.

2) 16 ft by 20 ft; add 10 to each dimension because the scale is 1 to 10.

3) 60 ft by 100 ft; multiply by a factor of 10 since 1 inch equals 10 feet.

4) 6 ft by 10 ft; change the dimensions to feet since the scale uses inches to represent feet.