Shi'a Islam and Sunni Islam are ALIKE in that they

A)
share key political beliefs.

B)
share fundamental Islamic beliefs.

C)
believe leaders should be politically elected.

D)
believe leaders should be from Muhammad's lineage.

B. share fundamental islamic beliefs

Explanation:

The reason that there is a separation between Sunni and Shi'a is because of political differences, Shi'a believed that leaders should be from Muhammad's lineage, while Sunni believe it should be politically elected. Therefore B is the only answer.

the answer to your question is:

strong-mayor system