In the hypothesis that C.stellatus (a species of barnacle)is competitively excluded from the lower intertidal zone by B.balanoides (another species of barnacle),what could be concluded about the two species?

A)The fundamental and realized niches of B. balanoides and C. stellatus are identical.
B)The fundamental and realized niches of B. balanoides and C. stellatus are different.
C)The fundamental and realized niches of B. balanoides are different, but the fundamental and realized niches of C. stellatus are identical.
D)The fundamental and realized niches of B. balanoides are identical, but the fundamental and realized niches of C. stellatus are different.