Which of the following are forms of megalithic structures?
A. Menhir
B. Cairn Circle
C. Dolmenoid cist
D. Hood Stone
E. Alignment
Choose the correct answer from the options given below:

Correct option is D

A megalith is a large stone that has been used to construct a prehistoric structure or monument, either alone or together with other stones, menhir, cairn circle, Dolmenoid cist, Hood stone and alignment are forms of megalithic structures.
*Menhir- It is a large standing stone erected in memory of death of person in megalithic period.
*Cairn Circle- Prehistoric stone row which is a liner arrangement of parallel megalithic standing stones.
*Dolmenoid Cist- It is burial chamber made of stone both for sides and cap