2.(5%)Which of the followings show the energy and momentum operators in quantum mechanics?(A) (B)(C) (D) (E)

3. The major difference between social cognitive theory and other learning approaches (e.g., Skinner) is that social learning theory (A) emphasizes developmental principles. (B) emphasizes learning in the absence of reinforcement. (C) emphasizes the interaction of reward and punishment. (D) emphasizes the role of unconditional positive regard.