The correct option is C 60-65 cm
Soyabean needs about 15 to 320C temperature for germination but for rapid growth the crop needs higher temperature. The crop requires about 60-65 cm annual rainfall drought at flowering or just before flowering results in flower and pod drops, while rains during maturity impairs the grain quality of soyabean. harmful. The best soil type is sandy loam having good organic matter content.