Question

Select the plural of the foreign word given below:
appendix
(A) appendixes
(B) appendica
(C) appendices
(D) appendix’s

Answer 1

Hint: When the noun refers to one item, the singular number is used. The plural number is used when more than one object is referred to in the noun.
A noun which is used for only one person or thing is said to be in the Singular Number. Example: girl, man, child, pen, table, chair etc.
A noun which is used for more than one person or thing is said to be in the Plural Number. Example:
girls, men, children, pens, tables, chairs etc.

Complete step by step answer:
The plural of the word 'appendix' will be 'appendices' if you're talking about 'the appendix' in a novel.
Hence the option C is the right answer.

Additional information:
The number in grammar refers to a noun or pronoun count. Boy-boys, wife-wives, my-our, ox-oxen, it-they etc.
Number Type: Singular Number and Plural Number.
The singular number applies to only one of the nouns or pronouns counted.
Examples include: pen, table, aunt, dad, goose, etc.
Here's an interesting quirk with grammatical number: The amount zero is treated as plural. ssExample- For example:
0 dogs (plural noun)
1 dog (singular noun)

Note:
It is not that all singular numbers become plural by adding s to the end. There are many other rules for making plural like ox plural is oxen. Therefore, before answering these questions, you should study all the rules of number changing; otherwise there are chances of mistakes in these questions.