When passing an array to a function, you code after the formal parameter name of the array in the function header to indicate it is an array. which of the following can be use?&[ ] { } ||Scalar variables in C++ are passed automatically to functions. a) by valueb) by referencec) both a and bd) none of the aboveIt is more efficent to pass arrays since most arrays are very large. a) by valueb) by referencec) by addressd) by scalar