(chiefly of large mammals) roll about or lie in mud or water, especially to keep cool or avoid biting insects.
OR
(of a person) indulge in an unrestrained way in (something that one finds pleasurable).
The word prodigy applies to Waverly due to her being especially good at chess, or whatever it was she does. Her mother's point of view on prodigy is being the best she can be, and the term applies to her mother by not being quite as smart as her daughter.
The correct options are "premeditated invasion" and "grave danger".
We refer to words such as "invasion" and "danger" as loaded words because of how immediately they stick on our mind as we hear or read them inside a phrase. This occurs because the connotation and literal meaning of them is without a doubt negative, and represent very quickly the sense of a harming threat.
Hope this helps!
<span>The process of resolving consumer complaints with the use of a third party who suggests a solution through discussion and negotiation is A. Mediation</span>