The operator * is prefixed to an iterator to

a) Multiply the element in the container
b) Extract the element in the container to assign to it only
c) Extract the element in the container to fetch its value only
d) Extract the element in the container as either an l-value or an r-value
e) The * is overloaded to perform addition, so this operator moves where the iterator points by a number of elements.

d) Extract the element in the container as either an l-value or an r-value