Which of the following is true about the architectural elements of Dravida temples?
AThe term "shikhara" refers to the central entrance gateway, while the temple tank is typically outside the temple complex.
BThe main temple tower in Tamil Nadu has a stepped pyramidal shape, and subsidiary shrines are usually integrated into the main temple tower.
CThe crowning element at the top of the temple is called "gopuram," which is shaped like an octagonal cupola.
DThe Dravida temple complex typically features only rectangular structures for subsidiary shrines.