What type of relationship occurs when two variables are synchronized and the levels of one variable affect the levels of the other?

According to Piaget, moral development, like cognitive development, proceeds in stages. The sequence of stages is as follows:

a. incipient cooperation, heteronomous morality, and autonomous cooperation. b. autonomous cooperation, heteronomous morality, and incipient cooperation. c. heteronomous morality, incipient cooperation, and autonomous cooperation. d. incipient cooperation, autonomous cooperation, and heteronomous morality.

According to the article Drinking Without Thinking about the outcomes of prenatal alcohol use, a woman who says she is going to stop taking a drug such as dilantin (an anti-seizure medicine) "as soon as I get pregnant":

(a) is doing the right thing in protecting her offspring from the drug (b) need not bother, as this drug has been shown to be harmless (c) is being over-cautious, she could take the drug until the 20th week of pregnancy with little risk (d) is exposing her offspring to a risky situation