<span>"He does not realize the demands he is making upon nature. . . . "</span>
Humans usually have 20 primary (baby) teeth and 32 permanent (adult) teeth huhahaha
Similarly, adolescents who report that they have a good relationship with at least one parent are more likely to report good physical and mental health. Family arguments during adolescence are to be expected, and may even serve an important developmental purpose.
Answer:
B.) The electrician that did the work was certified.
Hope this helps : )