Should schools eliminate "D" grades?

COMPENSATE
Schools should not eliminate "D" grades. According to some students, "think it's the worst idea ever, and even some teachers express concern that more students will fail" (source link). This shows that the INITIAL reason for "D" grades is to give students extra time to bring it up before it becomes an "F". This also shows that it gives teachers more time to INTERACT with their students to help them to catch up. Although according to Superintendent Larrie Reynolds, "I'm tired of kids coming to school and not learning and getting credit for it" (source link). This shows that some teachers don't agree that students just need more help than others. This also shows that taking away "D" grades will not COMPENSATE the problem, in fact it will only make it worse. In conclusion, schools need to keep "D" grades to give some of the students more time to bring their grades up and to catch up with the other students.