A brain-imaging studyfound that when people solve different kinds of problems theyuse

The primary reason that sex-linked traits are observed more frequently in men than in women is that:

a. mutations are much more common in male offspring b. male babies are weaker so are more likely to be spontaneously aborted if any developmental process is compromised c. the Y chromosome is much smaller and has fewer genes than the X chromosome d. women generally do not talk about sex-related behavior as much as do men

Fathers are more likely to extend resources to their children if

A) the children are in infancy. B) the children are grown and have contributed to family well-being. C) the father and children have spent quality time together. D) the children resemble the father.