The composite number is
. Option (A) is correct.
Further explanation:
The composite numbers are those who have more than 2 factors.
The prime numbers are those who have exactly 2 factors.
Given:
The options are as follows,
(A). 
(B). 
(C). 
(D). 
Explanation:
The factors of 91 are 1, 7, 13 and 91.
91 have 4 factors.
Therefore, 91 is a composite number.
The factors of 139 are 1 and 139.
139 have 2 factors.
Therefore, 139 is a prime number.
The factors of 13 are 1 and 13.
13 have 2 factors.
Therefore, 13 is a prime number.
The factors of 29 are 1 and 29.
29 have 2 factors.
Therefore, 29 is a prime number.
The composite number is 
Option (A) is correct as 91 is a composite number.
Option (B) is not correct as 139 is a prime number.
Option (C) is not correct as 13 is a prime number.
Option (D) is not correct as 29 is a prime number.
Learn more:
1. Learn more about inverse of the functionhttps://brainly.com/question/1632445.
2. Learn more about equation of circle brainly.com/question/1506955.
3. Learn more about range and domain of the function brainly.com/question/3412497
Answer details:
Grade: Middle School
Subject: Mathematics
Chapter: Composite numbers
Keywords: composite number, prime number, numbers, real number, 91, 139, 13, 29, whole numbers, prime factorization.