Read the following statements related to Sonalika and Kalyan Sona. Select the correct option stating True (T) and False (F).
A. Sonalika and Kalyan Sona are semi-dwarf varieties of rice.
B. Sonalika and Kalyan Sona were developed at IRRI.
C. Sonalika and Kalyan Sona were introduced to India in 1963.
D. Sonalika and Kalyan Sona are high yielding and disease resistant.