Correct option is A
The correct substitution of the highlighted words is
(a) that I take the medicine.
Explanation: The verb
“insist” is
not followed by an object + to-infinitive ( insist me to…). Instead, it is followed by
“that + subject + base verb” (subjunctive form) or sometimes “on + V-ing”. Hence, the correct structure is
insisted that I take the medicine. This makes the sentence grammatically correct and natural.
Grammatical rule used:
·
Insist + that + subject + base form of verb (subjunctive)
· Alternate:
Insist on + V-ing (e.g., insisted on taking the medicine)
·
Example: She insisted
that he apologise immediately.
·
Information booster / exceptions:
· In formal English, after
insist that, we often use the
base verb (take/go/be), not “takes/went”.
· “Insist me to…” is a common learner error; avoid it.