2. Problem B 2.1 Specification Write a C program to count the number of blank characters (white spaces) in a line of characters. The program reads from the standard input a line of characters and outputs the number of blank characters found in the line. 2.2 Implementation The program should: be named labib.c use getchar and a loop to read a line of characters which is terminated by the new line character ' '. display the following prompt before each input: Enter a line of characters> 2.3 Sample Inputs/Outputs: indigo 352 #lablb Enter a line of characters>Welcome to CSE 2031. indigo 353 labib Enter a line of characters>123456789 indigo 354 + labib Enter a line of characters>a bcdefgh indigo 355