Read each paragraph and then select the statement that best expresses the implied main idea.
1. During the middle years, humans experience a gradual decline in strength and stamina,
as well as in the sharpness of their senses. But for most adults, health continues to be
relatively good through the middle years. In fact, there is a marked decline in susceptibility
to many acute conditions, such as infections and colds. However, middle-aged adults do
experience an increase in chronic health problems, such as arthritis and heart disease.
—From G. R. LEFRANCOIS, The Lifespan 1e (p.448). Copyright © 1996 Dr. Guy R. Lefrancois. Reprinted by permission.
a. As youth disappears, adults face both advantages and disadvantages in their health.
b. The body gradually degenerates as humans get older.
c. Chronic health problems increase for living things during middle age.
d. For most adults, health continues to be relatively good through the middle years.