- A3
- B2
- C5
- D4
Step-by-Step Solution
The 13th is a Friday exactly when the month starts on a Sunday. 2029 (from Monday, 1 January): Apr and Jul start on Sunday: 2 months. 2030 starts on Tuesday: Sep and Dec start on Sunday: 2 months. Total 4. (3 misses one of each pair that start on the same day, e.g. April/July.)
Answer: D) 4