In all kinds of letters, how many kinds of form have to be attended?a.2b.5c.6d.8

To answer the question, we need to determine how many kinds of form have to be attended in all kinds of letters.

The options given are: a. 2 b. 5 c. 6 d. 8

To find the correct answer, we need to consider the different types of letters and the forms that need to be attended to in each type.

Step 1: Identify the different types of letters. This information is not provided in the question, so we cannot determine the exact number of types of letters.

Step 2: Determine the forms that need to be attended to in each type of letter. Again, this information is not provided, so we cannot determine the exact number of forms.

Since we do not have enough information to determine the exact number of kinds of form that have to be attended in all kinds of letters, we cannot choose a specific option from the given choices (a, b, c, or d).