C Programming
String concatenation means -

Combining two strings.
Comparing the two strings to define the larger one.
Partitioning the string into two strings.
Merging two strings.
Extracting a substring out of a string.

ANSWER DOWNLOAD EXAMIANS APP

C Programming
Use of functions

Helps to avoid repeated programming across programs.
All of these
Enhances the logical clarity of the program.
Helps to avoid repeating a set of statements many times.
Makes the debugging task easier.

ANSWER DOWNLOAD EXAMIANS APP