Select the most appropriate option to substitute the underlined segment in the given sentence. If there is no need to substitute it, select No substitution required. A study has uncovered a previously overlooked law of natural selection based on "survival of the slacker", that is, `ul("spend all day lazing about could be good for human evolution")`.

Options

A. No substitution required
B. spending all day lazing about must be good for human evolution
C. spend all day lazing about will be good for human evolution
D. spending all day lazing about could be good for human evolution

Answer

D

Explanation

spending all day lazing about could be good for human evolution