Topic: Adjective (বিশেষণ),

Best Answer Explained in Below-:

The correct answer is "A) Ten-dollar" because it correctly follows the grammatical structure needed in the context of the sentence. In English, when we refer to a specific denomination of currency in a compound adjective form, it is typical to use the singular form of the number combined with the noun, regardless of whether we are discussing actual plural amounts.

In this case, "ten-dollar" serves as an adjective describing the type of bill that drivers can make change for. Instead of saying "ten-dollars," which implies a plural concept (more than one ten-dollar bill), we use "ten-dollar" to indicate that it is one specific type of bill used for making change.

Options C ("tens-dollars") and D ("the ten-dollars") are incorrect as they either misuse plural forms or don’t fit well in this context. Therefore, "ten-dollar" is the grammatically and contextually appropriate choice for describing the amount of money cab drivers carry for change.