Explanation:

Introduction:
The question asks to change the number of the word "Clothes" among the given options. We need to identify the correct option and provide an explanation for it.

Options:
a) cloth
b) clothes
c) clothies
d) clotheis

Analysis:
To determine the correct option, we need to understand the meaning and usage of the word "Clothes".

Meaning of "Clothes":
"Clothes" is a plural noun that refers to garments or articles of clothing worn by individuals.

Usage of "Clothes":
- The word "Clothes" is used to refer to more than one piece of clothing.
- It is the correct plural form of the word "Cloth", which refers to a single piece of fabric.

Evaluation of Options:
a) cloth: This option is incorrect because "cloth" is the singular form of the word and does not indicate more than one piece of clothing.
b) clothes: This option is correct because it is the plural form of the word "Cloth" and accurately represents more than one piece of clothing.
c) clothies: This option is incorrect because "clothies" is not a standard English word and does not represent the plural form of "Cloth".
d) clotheis: This option is incorrect because "clotheis" is not a standard English word and does not represent the plural form of "Cloth".

Conclusion:
From the given options, the correct answer is option b) clothes as it accurately represents the plural form of the word "Cloth" and indicates more than one piece of clothing.