Select the best version of the underlined part of the sentence. The first choice is the same as the original sentence. If you think the original sentence is best, choose the first answer.
(The bizarre creatures known by electric eels) are capable of emitting an incredible 600 volts of electricity.
a. The bizarre creatures known as electric eels
b. A bizarre creature known as electric eels
c. The bizarre creatures known by electric eels
d. The bizarre creatures known to electric eels