B in a math course for math major transfer to UCLA,UCB,UC Davis and UCI

Hi I am a student at a California community college .I am applying to transfer to UCLA,UC Davis, UC Irvine & UC Berkeley this fall.For now I have a 3.92 GPA,with my only B,up to now,comes from my English 1B course.

My intended major is math.For now I am having some difficulty in my Differential Equation class though I have had 2 Bs in exam up to now.I can still fix that but just in case the worst thing happen and I end up having a B in this math class will this end my chance at any of those schools?