Answer:
A). Shaping.
Explanation:
As per the given description of Marc's behavior and his mother's attitude to amend his habits exemplify that his mother is employing 'shaping' as it would establish his behavior which was previously not performed. This concept was first defined by B.F. Skinner who was a leading psychologist advocating 'behaviorism'. 'Shaping' is quite commonly employed by teachers and mothers to inculcate or <em>reinforce certain behavior in kids that would help them to perform better and reach nearer to their targets.</em> Similarly, Marc's mother is reinforcing 'successive approximations' to instill a behavioral change in him and attain the desired goal(when Marc begins to do his homework regularly). Thus, <u>option A</u> is the correct answer.
This new adhesive were someday used for store-bought tapes, it could help the environment in more than one way. Lignin is a waste from making paper and ethanol from trees. So this glue wouldn't just replace adhesives made from crude oil. It also would
