Question

The following sentences test correctness and effectiveness of expression.

One reason that an insect can walk on walls while a human cannot is that the mass of its tiny body is far lower than humans.

• A. Far lower than humans
• B. Far lower than that of a human body
• C. Lower by far than humans
• D. Far lower than a human
• E. Far lower than is a humans body

Answer 1

The correct option is B Far lower than that of a human body

Here, mentioning only 'humans' is not clear enough: it is unclear what aspect are we talking about. Using 'human body' is much more appropriate and it is better to use 'that of a' when we say 'human body'. Only B rectifies these errors without creating new ones.