According to the grade scales provided by the sources, a 65% grade can correspond to different letter grades depending on the scale used. Here are the different possibilities:

• D: Many college grading systems consider a D, or 65 percent, to be the lowest passing grade.
• C-: A 65% corresponds to a C- on the grade scale provided by Skidmore College.
• D: A 65% corresponds to a D on the grade scale provided by the University of Northern Iowa.
• D: A 65% corresponds to a D on the GPA scale provided by GPA Calculator.
• D: A 65% corresponds to a D on the percentage grade scale provided by CollegeSimply.
• D: A 65% corresponds to a D on the grade scale provided by WhatGradeIsIt.

Therefore, a 65% grade can correspond to a D or a C- depending on the grading system used.