请问这个题选什么？关于堆栈的

Question

A stack trace is      

 (a) only available through a typical debugger's step into feature

 (b) a sequence of method calls

 (c) a fatal error that causes a typical debugger to terminate

 (d) a list of variables allocated on a program's stack

 

Answer 1

选b就是函数或者方法的调用跟踪记录