Critical Reasoning

The 32 species that make up the dolphin family are closely related to whales and in fact
include the animal known as the killer whale, which can grow to be 30 feet long and is
famous for its aggressive hunting pods.
A. include the animal known as the killer whale, which can grow to be 30 feet long
and is
B. include the animal known as the killer whale, growing as big as 30 feet long and
C. include the animal known as the killer whale, growing up to 30 feet long and
being
D. include the animal known as the killer whale, which can grow as big as 30 feet
long and is
E. include the animal known as the killer whale, which can grow to be 30 feet long
and it is

Need to know the correct usage - grow as big as Vs grow to be

Thanks

IMO A

A is the correct answer. as big as is an idiomatically incorrect.

btw this should be posted in SC forum...