In the question given below, the sentence has been divided into five parts out of which the first part is given in bold. Each question is followed by five options which give the sequence of the rearranged parts. Choose the option that gives the correct sequence. If the sentence is already arranged or the given sequence does not match then choose (e) i.e. none of the above as the answer.

The government of India have been undertaking /were chemically contaminated (A) / to test for formalin (B) / that fish sourced from here (C) / tests at fish markets across the country (D).