simple code fragm ent o そ三 fo ca/culate Write .3 zW

Use python please

The following are all legal C variable names except: O a. Ab_ O b. 2AB O c. constant O d. al23 O e. None

use C programming stdio.h enter a number:5 output : 5,10,15,20,25,20,15,10,5  enter a number :3 output : 3,6,9,6,3 * TERMINATION ______________________________________________________________________ second PROBLEM C PROGRAMMING STDIO.H    N1 N2 OUTPUT 0 0 GOT7 POSITIVE EVEN  POSTIVE EVEN N1+N2 POSITIVE ODD POSITIVE ODD N1 x N2 NEGATIVE EVEN NEGATIVE EVEN MARK TUAN NEGATIVE EVEN NEGATIVE ODD JACKSON WANG       WITH TERMINATION ___________________________________________________________________________ 3RD PROBLEM USING C PROGRAMMING STDIO.H     the 1ST INPUT is 5  2ND input 13  output : 5, 8 ,13 *TERMINATION   ---------------------------------------------------------------------- last question  c programming stdio.h I think the problem starts before the nested if switch because at the end of the code it should output the result of sales = quantity * price and change = payment - total amount and asking quantity and Payment #include<stdio.h> main() { int…