Function templates

a. are overloaded automatically

b. can be overloaded

c. are never overloaded

d. can be overloaded, but seldom are in common programming practice

Option B. can be overloaded

Explanation:

These functions can be overloaded, it means that  we can have functions with the same name as long as the types or the number or the arguments are different.  A function template can be overloaded in two ways: with other function templates or with normal functions.

A normal function has not relation to a function template, it is not considered an specialization.

whats

only #2 represents an object at rest on a table.

in #1, there is no normal force due to the table; the object is accelerating downward.

in #3, the vertical forces are not balanced; the object is accelerating downward.

in #4, neither the vertical nor the horizontal forces are balanced. the object is accelerating upwards and to the right.