Suppose I define some structure type ( studentInfo), then I declare an instance of it and I decide to also create a pointer to the instance like so:

typedef struct{

int age;
char idNum[9];
}
studentInfo;

...Code continues...

struct studentInfo mainInfo, *pMain;
pMain = &mainInfo;

Which of the following options is functionally equivalent to:

a. (p*Main).age = 20;
b. *pMain. age = 20;
c. pMain. age = 20;
d. *(pMain. age) = 20;

What is wi-fi infrastructure? a metropolitan area network that uses radio signals to transmit and receive data a communications technology aimed at providing high-speed wireless data over metropolitan area networks a means by which portable devices can connect wirelessly to a local area network, using access points that send and receive data via radio waves includes the inner workings of a wi-fi service or utility, including the signal transmitters, towers, or poles and additional equipment required to send out a wi-fi signal