Read the following statements and find out the incorrect statement(s).
(a) The universe is almost 20 million years old.
(b) Huge clusters of galaxies comprise the universe.
(c) Considering contain stars and clouds of gas and dust.
(d) Considering the size of earth, universe is indeed a speck.
(e) Big bang theory attempts to explain the origin of universe.
A. a,b and c
B. b and c
C. a and d
D. only a
