In the age of computer and the I

In the age of computer and the Internet, wherever we are, we have _____ trouble keeping in touch with our family and friends.
A、few
B、a few
C、little
D、a little
【正确答案】：A
【题目解析】：答案选A。trouble是可数名词，排除CD；题干意思是与家人朋友保持联系几乎不存在问题，答案选A。