How Is the Definition of "Child" Different from That of "Infant

Multiple Choice

How is the definition of "child" different from that of "infant?"

A) Infancy is defined as the first two years of life where complex speech is absent, whereas childhood lasts from birth until puberty.
B) Infancy lasts until age 2, whereas childhood lasts until age 5.
C) Infancy is defined by a presence of complex speech, whereas childhood involves the absence of complex speech.
D) The definition of child and infant are the same.