Below, a statement has been divided into 5 parts. The one in bold is the fixed part, to which no changes can be made. Among the other parts (A), (B), (C) and (D), find the error-free part(s), and mark them as your answer. If there are no errors, then mark option (5), viz, No Error, as your answer.

 It ought to (A) / have being a (B) / pleasant decision to (C) / go to a hill station in (D) / this sweltering heat.