Each of the following is a true statement about muscle strength and resistance training through the life-span except: A) Although muscle strength tends to gradually decrease in middle-age and older adults, weight training has been shown to be ineffective (does not lead to adaptive strength gains or functional improvement) after the seventh decade of life B) During the early and middle childhood years prior to puberty, muscle strength increases linearly and is reasonably similar (as little as a 10% difference) in boys and girls C) During puberty, although greater muscle hypertrophy occurs in boys than girls as the result of resistance training, relative training-induced strength gains are comparable between the sexes D) During late adulthood muscle atrophy occurs to a greater extent in type II than type I muscle fibers