What is the primary difference between std::vector and std::array in C++?Group of answer choicesstd::vector is a container that can store elements of different data types, while std::array stores elements of the same data type.std::array is dynamically resizable, while std::vector has a fixed size.std::array has a fixed size determined at compile-time, while std::vector can dynamically resize.There is no difference between them; they are used interchangeably.

What are the advantages of arrays?Select one:a.Objects of mixed data types can be storedb.Elements in an array cannot be sortedc.Index of first element of an array is 1d.Easier to store elements of same data type

Which of the following statements about arrays in C++ is true?Arrays can store elements of different typesThe size of an array must be a constant expressionArray elements are accessed using parenthesesArrays can be resized after declaration

What is the most important difference between a scalar and a vector quantity?

In C++, a one-dimensional array inside a one-dimensional array is called _________.

What makes vector-based code more efficient than conventional code?