Franca, age 11, recently started contradicting and disagreeing with her parents. she is self-conscious and often goes to her room and closes the door. franca is a head taller and several pounds heavier than most girls in her sixth-grade class. franca has probably

entered adolescence.

Explanation:

Adolescence is a phase of human life that begins around 11 years of age. This is the period of life in which the most apparent changes in the body occur due to hormonal changes. At this stage of life it is common to try to move away from the family, because it no longer satisfies them in relation to social interests. Individuals who enter puberty tend to behave slightly differently, beginning to contradict and disagree with their parents, they also tend to be taller and heavier than individuals of the same age who did not enter puberty.  Franca is showing these signs, so we can conclude that she is entering adolescence.