Why we use :: template-template parameter?

1.	Why we use :: template-template parameter?
A.	class
B.	rebinding
C.	binding
D.	both binding & rebinding
E.	None of these
Answer» E. None of these

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What is the output of this program? <pre class="prettyprint lang-c">#include <iostream> using namespace std; template<typename type> class Test { public: virtual type Function(type num1) { return num1 * 2; } }; int main() { Test<int> num1; cout << num1.Function(150) << endl; return 0; } </pre>
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What is the output of this program? <pre class="prettyprint lang-c">#include <iostream> using namespace std; template <class T> inline T square(T n1) { T Output; Output = n1 * n1; return Output; }; template <> string square<string>(string Str) { return (Str + Str); }; int main() { int k = 4, kk; string bb("B"); kk = square<int>(k); cout << k << ": " << kk; cout << square<string>(bb) << ":" << endl; } </pre>
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Why we use :: template-template parameter?

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