${\color{Red}{\text{“Either”}}}$ is used in the same sentence as ${\color{Green}{\text{“or”}}}$ to show two or more possibilities or choices. For example:
- “You can choose either the red car or the blue car.”
${\color{Magenta}{\text{“Neither”}}}$ is used in the same sentence as ${\color{Teal}{\text{“nor”}}}$ to show something is not true or doesn’t happen out of two or more people, actions, things, ideas, or qualities. For example:
- “Neither Mr. Smith nor Mrs. Jones came to the meeting.”
Mr. $\text{X}$ speaks ${\color{Magenta}{\text{“Neither”}}}$ Japanese ${\color{Teal}{\text{“nor”}}}$ Chinese.
Correct Answer $:\text{C}$
$\textbf{PS:}$ When using either/or and neither/nor use a singular verb in the sentence if both the subjects (nouns) are singular, for example, “${\color{Red}{\text{“either”}}}$ my mother or my father is coming”. “Is” is the singular verb in this sentence. But, if either of the subjects is plural, you have to use a plural verb. For example, “${\color{Red}{\text{“Either”}}}$ my mother or my sisters are coming.” “Are” is the plural verb in this sentence.
Reference: https://preply.com/en/blog/using-either-neither-nor-and-or-in-english/
