Select the most appropriate option to substitute the highlighted segment in the given sentence. If no substitution is required, select ‘No substitution’.
There are adventures to be found in history and art, not much so in bird-watching or skiing.

Correct option is B

The correct substitution is (b) as well as.
Explanation:
The use of “not much so” is awkward and ungrammatical here. The correct phrase for expressing inclusion of additional elements alongside others is “as well as.”
Correct sentence: There are adventures to be found in history and art, as well as in bird-watching or skiing.
Grammatical Rule Used:
Use “as well as” to add one item to another without changing the sentence structure.
Example:
· She enjoys classical music as well as jazz.
Information Booster:
"Not much so" is not a standard phrase. For contrast, "unlike" or "in contrast to" can be used; for addition, use "as well as", "along with", or "in addition to".