to make it easy to carry to keep it simple to build to make the screen easy to read to provide storage for an electrical cord
I gave my students this multiple choice question: What is the main advantage of making a laptop computer light in weight?

Only one answer is correct among these 4 choices:
- to make it easy to carry
- to keep it simple to build
- to make the screen easy to read
- to provide storage for an electrical cord

Could you tell me which one is correct?

to make it easy to carry