Eating fish has been identified as a risk for expectant mothers since it may contain high levels of

A) lead.
B) sulfur.
C) mercury.
D) nitrogen.

Mercury

A chemical element with symbol Hg and atomic number 80, known as quicksilver, which is a liquid metal at room temperature.

Expectant Mothers

Women who are pregnant and anticipating the birth of their child.

High Levels

A term that can refer to a high degree or intensity of something, such as high levels of pollution, stress, or achievement.