单选题

为以下表达式选择结果是？（ ） std::string str1("trend") std::string str2("micro") std::string& strs = s

Question

以下表达式选择结果是？（    ）

std::string str1("trend")
std::string str2("micro")
std::string& strs = str1
std::string* ptrs = &str1
strs = str2
ptrs = &str2

A. strs = micro, * ptrs = micro

B. strs = micro, * ptrs = trend

C. strs = trend, * ptrs = micro

D. strs = trend, * ptrs = trend