⟩ What is the output of this program? #!/bin/bash function san_function1 { echo "This is first function" } san_function2() { echo "This is second function" } san_function1 san_function2 exit 0 a) This is the first function b) This is the second function c) This is the first function This is the second function d) program will generate error because first function definition is not correct