Read each sentence to find out whether there is any error in it. The error, if any, will be in one part of the sentence. If there is no error, the answer is E. (Ignore errors of punctuation, if any).
Many decision problems (A)/ involve a number of (B)/ objectives, and often (C)/ these objectives conflicts. (D)/ No error (E)
Objectives is plural so it should be followed by plural verb conflict. Answer is D.
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