Radhika11 wrote:
Credited for : when credit is not a verb but a noun.
For example: she receivedcredit for her good work.
In the question, credited is used as a verb so we can't use 'credit for' here.
Eliminate option B andD
Credited to is used when Credit is used as a verb: 'Credit X to Y'. Eg: The bank credited $1 billion to youraccount.
Credited with is used when Credit is used as verb: 'Credited Someone with something'. Eg: Your account has been credited with $1 billion.
Kudos please if it helped

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