A bag contains 4 red chips, 2 blue chips, and 3 white chips. If one chip is drawn at random, what is the probability that the chip will not be red? 
选项为:A:$\dfrac29$  B:$\dfrac49$  C:$\dfrac59$  D:$\dfrac69$  E:$\dfrac79$  请回答其中一个选项.