Synonym of IMPECCABLE

Answer: Option B

Precise : marked by exactness and accuracy of expression or detail.
Faultless : free from defect or error.
Fussy : fastidious about one's needs or requirements; hard to please.
Integrity : the quality of being honest and having strong moral principles.
Impeccable : in accordance with the highest standards; faultless.

Synonym of Impeccable is Faultless