Gerbera can be grown in:

Correct option is D

Gerbera (Gerbera jamesonii) is an adaptable flower that grows in tropical, sub-tropical, and temperate climates. However, it thrives best in a mild climate with temperatures ranging from 15°C to 25°C. Proper greenhouse cultivation can allow it to grow in a wider range of conditions.
Thus, the correct answer is (d) All of the above.