The following are legal for non-type template parameters: integral or enumeration type, Pointer 

to object or pointer to function, Reference to object or reference to function, Pointer to member.

None

The compiler can determine at compile time whether the type associated with a template definition 

can perform all of the functions required by that template definition.

There are two types of templates. They are function template and class template.

Answer:a
Explanation:In this program, We are passing the value to the template and printing it in the template.
Output:
$ g++ tem2.cpp
$ a.out
5.5
Hello World