The correct option is C solanaceae
The given floral formula represents solanaceae family, which includes tomatoes and potatoes. The formula indicates that (in the order of the symbols)
1. Actinomorphic flowers with a radial symmetry
2. Bisexual flowers with both male and female reproductive parts in a single flower.
3. K indicates calyx and the number in subscript and in parenthesis indicates that it has 5 sepals.
4. C indicates corolla and the number denotes that it is pentamerous or with 5 petals.
5. A indicates androecium and the subscript number indicates that it has 5 stamen.
6. The line drawn above the symbols of C connecting A indicates that petals and stamen are fused.
7. G represents gynoecium and the subscript in parenthesis indicates that it has 2 carpels or is bicarpellary.
8. The line drawn under the symbol G indicates that it has superioir ovary or is epigynous.