Correct option is C
To calculate the Estimated Date of Delivery (EDD), apply Naegele’s rule:
Add 7 days to the first day of the LMP
Subtract 3 months (or add 9 months)
Add 1 year if needed
LMP: 15 September 2019
Add 7 days → 22 September 2019
Add 9 months → 22 June 2020