The company built the structure using steel but not iron because the 
OPTIONS:
- steel was costly.
- iron was costly.
iron was costly.

The man grows tomatoes, but not bananas, because the climate he lives in is more inhospitable for 
OPTIONS:
- tomatoes .
- bananas .
bananas .

Stefan bought measuring tape instead of the weighing scale because he had been told that it's much more accurate to use the 
OPTIONS:
- scale to track your physical transformation.
- tape to track your physical transformation.
tape to track your physical transformation.