Correct option is A
The correct substitution of the highlighted words is (a)
my children passed.
Explanation:
The phrase "Both of mine child" is grammatically incorrect.
Firstly, mine is a possessive pronoun, not a possessive adjective.
When modifying a noun directly (like child), we should use a possessive adjective—
my, not mine.
Secondly, the word child is singular, but both refers to
two, so the noun must be
plural: children.
Also, the verb passed is correctly used in the past tense, as the action is completed.
Grammatical rule used:
· Mine is used without a noun: "This pen is mine."
· Use my before a noun: "This is my pen."
· Both always refers to two entities, hence the following noun must be plural.
Example:
✅ Both of my children scored well in the exam.
❌ Both of mine child passed the exam.