Question regarding memory allocation in C

Question

I am having a difficult time getting why the answer is 66 bytes to the following question:

How much memory gets allocated for the data passed through the pointer in the main functions 2nd parameter(not considering the pointer size) in a 64 bit system, if the app is run with

./program alfa beta gamma

question from:https://stackoverflow.com/questions/65643432/question-regarding-memory-allocation-in-c

Answer 1

The best I could come up with is

argv[0] ==> 8 bytes for pointer itself + 6 bytes for the data ("./app") ==> 14
argv[1] ==> 8 bytes for pointer itself + 5 bytes for the data ("alfa") ==> 13
argv[2] ==> 8 bytes for pointer itself + 5 bytes for the data ("beta") ==> 13
argv[3] ==> 8 bytes for pointer itself + 6 bytes for the data ("gamma") ==> 14
argv[4] ==> 8 bytes for the pointer (NULL) ==> 8

TOTAL: 62

Maybe add 4 bytes for argc for 66 bytes??