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Isn't it very kind __________ your parents to do that for us?

A. for          B to            C. about          D. of

Isn't it very kind __________ your parents to do that for us?

A. for          B to            C. about          D. of

Isn't it very kind __________ your parents to do that for us?

A. for          B to            C. about          D. of  

Isn't it very kind __________ your parents to do that for us?

A.for          B to            C. about          D. of

Isn't it very kind __________ your parents to do that for us?

A. for          B to            C. about          D. of