Option b is your best choice because it accurately identifies how vague the term "physical activity" is; however, it is an imperfect choice because the answer does not actually compare both ideas.
Yes, that is true. There would be less accidents.
Answer: Pearl should avoid studying in her bedroom at all. A desk with a well-cushioned, ergonomic swivel chair in another room would be perfect for her needs, since she would get all the comfort without the excessive relax that a bed or even a sofa would offer. If she insisted on using a sofa, though, it would be advisable to add one of those special sofa-tables where she could place her notes and rest her arms, since this makes the "sofa experience" feel closer to an academic activity and is likely to enhance her focus.
Answer:
Paid.
Explanation:
Paid makes the most sense. Both would work, but paid fits with the most reasoning.
