Maternal Inheritance Patterns from Generation to Generation Cannot Be Analyzed

Multiple Choice

Maternal inheritance patterns from generation to generation cannot be analyzed by simply studying the X chromosome in the way that paternal inheritance patterns can follow the Y chromosome because

A) the X chromosome is too large to analyze effectively.
B) the X chromosome sometimes exchanges genetic information with the Y chromosome.
C) the X chromosome is obtained from both the father and the mother.
D) one X chromosome is deactivated in females.