Identify the part of the following sentence which has an error in it. Your claim ought (a) to succeed in that case (b) the damages (c) will be substantial (d).

Part (b) contains the error. The sentence needs a conjunction or connector before 'in that case' to link the two clauses properly. It should read 'to succeed, in which case' or 'to succeed; in that case' to correctly join the two independent thoughts. As written, the sentence is missing the necessary linkage between 'Your claim ought to succeed' and 'in that case the damages will be substantial.'