Mark began studying for his master's degree this year on a half$-$time basis. He has applied for a Pell Grant, a Federal Supplemental Educational Opportunity Grant $($FSEOG$),$ but was not approved for either of these. Why were Mark's applications for a Pell Grant and a FSEOG Grant rejected? A$)$ He is a graduate student. B$)$ He first has to be approved under the PLUS program. C$)$ He did not demonstrate the required financial need. D$)$ He is a half$-$time student.