Explicit type conversion is accomplished in C++ with which of the following operators?

An rvalue reference is used to implement move semantics—instead of being ________, the object’s state (i.e., its content) is ________, leaving the original in a state that can be properly destructed.

a. copied, moved b. moved, copied c. assigned, initialized d. initialized, assigned

A symmetric cipher that was approved by the NIST in late 2000 as a replacement for DES.

What will be an ideal response?