Silent heat dominant in

Answer: Option C

Silent heat dominant in Buffalo.
Silent heats occur when not enough progesterone is being produced. Progesterone acts along with oestrogen to manifest itself in visual signs of heat in a cow or heifer.
Silent heat is a condition in which the buffalos do not exhibit the behavioral symptoms of estrus (heat), although the physiological symptoms of estrus are present.
As a result of silent heat, animals become repeat breeders and fail to maintain the estrus regularity and cyclicity.