Respuesta :
Answer:
A. “‘The spinal column is particularly apt to be injured by too early riding.’”
C. “He went on to warn that the hearts, muscles, and nervous systems of riders also might be adversely affected if they started cycling too early.”
Option B deals with the case of a 37-year-old man, which is older that what the question states. Options D and E deal only with gender, not age.
The correct answers are alternatives A and C.
Options A and C are the ones that relate to serious cycling problems for people under the age of twenty-one. In the former, the statement refers to a tendency of young people to develop spinal column injuries. In the latter, the explanation indicates that those who start cycling at early ages might suffer from an abnormal condition of heart, muscles and nervous systems.