According to the 2011 Bangladesh census, what was the literacy rate of Gorai Union?

A. 50.1% (male: 55.5%, female: 44.8%)
B. 69.9% (male: 74.5%, female: 65.3%)
C. 59.4% (male: 64.1%, female: 54.8%)
D. 79.8% (male: 84.9%, female: 74.7%)
Answer: 