Directions: In the given question, a part of the sentence is printed in bold. Below the sentence alternatives to the emboldened part are given as (1). (2). (3) and (4) which may help improve the sentence. Choose the correct alternative out of the given five options. In case the given sentence is correct, your answer will be (5), i.e., "No correction required".

If thereafter, their subcontracts are for some reason reduced, such firms could be faced potentially crippling fixed expenses.