If you can retake it and earn a B or A youll be good....also...you should try to rock that section and the rest of the DAT. a high DAT score can usually offset a few bad grades or a low GPA.
Im kind of in the opposite situation. I got B+ and A in ochem 1 & 2 respectively but only a 17 in ochem on the DAT. Hopefully my grades in the class can help me out with that. GL.