A sentence has been given in Active/Passive Voice. Out of the four given alternatives, select the one which best expresses the same sentence in Passive/Active Voice.
One of the finest jewels of Tamil poetry, the epic poem Manimekalai was written by Sathanar in 2nd century A.D. It is unique for the deep spirituality and mysticism it unfolds against the historical and geographical background of South India and of adjacent Jaffna.
Fixed cost per unit increases when production volume decreases. The fixed cost per unit does not always remain the same. Fixed cost per unit increases when production volume decreases and vice versa.