Correct option is B
The correct substitution of the highlighted words is (b)
you might break.
Explanation: The auxiliary verb “might” is always followed by the
base form of the main verb, not past or third-person forms. "Broken" is the past participle, which is incorrect here.
Grammatical rule used:
· Modals like “might”, “can”, “should” are followed by the
base form (V1) of the verb.
·
Example: You might win the race. ✅
· Incorrect: You might won ❌
Information Booster:
Past participles (e.g., broken, done, eaten) are only used with
perfect tenses (has/have/had + V3) or in
passive voice.