ANSWER
C. $ 7.00
EXPLANATION
It was given that four students had the following amounts of money in their pockets: $3.14, $.67, $2.45, and $1.14.
To find the amount of money they have in total, we add all their monies together to get:
$3.14+$0.67+$2.45+$1.14
This will give us a total of $7.00