Which of the Following Statements Is True

Multiple Choice

Which of the following statements is true?

A) When working with many of the C++ Standard Library containers, you can use the new member functions emplace, emplace_front, emplace_back, emplace_after and emplace_hint to insert objects into containers.
B) The emplace member functions insert objects into contains without invoking any copy or move operations.
C) The emplace member functions actually contruct new objects in place in the new container elements.
D) All of the above.