8% of the people eligible to vote are between 18 and 21 years of age. In an election 85% of those eligible to vote, who were between 18 and 21 actually voted. In that election, the number of persons between 18 and 21 who actually voted, was what percent of those eligible to vote? `4. 2` b. `6. 8` c. `8` d. 6.4