To find the total cost \( c \) of buying 5 slices of pizza, we can set up the equation based on the price per slice.
Each slice costs $1.95, and you want to buy 5 slices. The total cost \( c \) can be calculated as:
\[ c = 5 \times 1.95 \]
This means the equation representing the total cost when buying 5 slices is:
\[ c = 5 \times 1.95 \]
Among the options you provided, none of them correctly represent this equation directly. However, to represent it in the format of an equation that equals the cost, you would write:
\[ c = 5 \cdot 1.95 \]
If you're looking for a direct representation from the options given, it appears there is no valid option listed. Just remember, the correct equation to express your scenario is \( c = 5 \times 1.95 \).