The correct option is A 7
As we go down in the pattern, we notice that stars are increasing in the order of odd numbers, beginning from 1.
Row 1 has 1 star.
Row 2 has 3 stars.
Row 3 has 5 stars.
Row 4 has 7 stars.
Row 5 has 9 stars.
Row 6 has 11 stars.
Similarly, we can see row number 7 will have 13 stars.