<u>Explanation:</u>
The term node in this context basically refers to a series or groups of points in a graph, phrase markers, or a tree.
It is noteworthy that two or more nodes are referred to as daughters of another node in P-marker when if and only if the nodes in consideration (eg T, Q, R) are immediately dominated by another (M), which is called the mother node.
Answer:
The correct answer is D.
Explanation:
A is very informal due to the use of slang such as ''ain't''.
B has an informal tone and language due to the usage of 'you guys' to address other people.
C is very informal due to the use of shortened street slang ''Y'all'' commonly used in informal set-ups for example among friends.
