Verb of 'number' is-

1. Enumerate (verb)

   :

- Verb: "Enumerate" is a specific verb that means to mention things one by one or to list items individually. It's often used when discussing a list or counting items in an organized manner. For example, "Please enumerate the steps needed to complete the task."

Now, let's analyze the options provided:

- ক "Numeric": This is an adjective that relates to numbers or numerical values, but it doesn't function as a verb.

- খ "Benumerate": This term does not exist in standard English. The correct form is "enumerate."

- গ "Numbering": This is a gerund form of the verb "number," used to describe the action of assigning numbers to items or arranging items in a numerical sequence. While it's related to the verb "number," it doesn't directly function as a verb itself.

- ঘ "Numerical": This is an adjective that relates to numbers or numerical values, but it doesn't function as a verb.

Based on these explanations and rules, the correct verb form of "number" is:

‘খ-Enumerate’.