If both numbers in the parentheses are multiple of the smaller number, the number in the parentheses should be divisible by the smaller number. 
Which of the following number pairs do not contain any divisible relationship? 
Options:
a. $(12+78), 2$ 
b. $(39+61), 3$ 
c. $(44+82), 4$ 
d. $(25+5100), 5$ 