Select the most appropriate option to substitute the highlighted segment in the given sentence. If there is no need to substitute it, select 'no substitution required'.
It is wonderful to watch the rain while sitting in the balcony and sipping tea.

Correct option is C

The correct answer is (c) No substitution required.
Explanation: The sentence is grammatically correct as “to watch the rain” uses an infinitive form ( to + base verb), which correctly follows the adjective “wonderful.” The use of the definite article “the” before “rain” is also appropriate, as it refers to a specific occurrence of rain being watched.
Grammatical rule used: After adjectives expressing emotions or opinions (like wonderful, nice, amazing), we use the infinitive form to + verb.
Example: It’s amazing to see the stars at night.
Information booster:
“To watching” is incorrect because “to” here is not a preposition but part of an infinitive, and thus must be followed by the base form of the verb.