Cpp Programming Quiz 189 – What will be the output of the following program?

Question: What will be the output of the following program?

#include
#include
class IndiaBix
{
char txtMsg[50];
public:
IndiaBix(char *str = NULL)
{
if(str != NULL)
strcpy(txtMsg, str);
}
int BixFunction(char ch);
};
int IndiaBix::BixFunction(char ch)
{
static int i = 0;
if(txtMsg[i++] == ch)
return strlen((txtMsg + i)) - i;
else
return BixFunction(ch);
}
int main()
{
IndiaBix objBix("Welcome to IndiaBix.com!");
cout<< objBix.BixFunction('t'); return 0; }

[A].6
[B].8
[C].9
[D].15 

Answer: Option A