Answer :
The correct statement to assign the first element of the vector myvector with the value 99 would be (1) = 99. So the correct option is (2) (1) = 99.
In C++, vectors are zero-indexed, meaning the first element of the vector is accessed using index 0. Therefore, the correct statement to assign the first element of the vector myvector with the value 99 would be to use index 0: myvector[0] = 99;
In summary, assuming a one-based indexing system (which is not typical in C++), (1) = 99 would assign the value 99 to the first element of the vector myvector. However, in the typical zero-based indexing system used in C++, the correct statement would be myvector[0] = 99;. So the correct option is (2) (1) = 99.
