D1. Every function in C++ must return a value. Is the statement correct? Yes, a function can return any data type but must return a value. No, C++ only alows subroutines not functions. Yes, every...

D1. Every function in C++ must return a value. Is the statement correct? Yes, a function can return any data type but must return a value. No, C++ only alows subroutines not functions. Yes, every function must return an integer value. No, void functions do not return a value. D 2. Which function is run first in every C++ program? The main function. Whichever function is at the top. Void functions always run before functions with a specific return type. Whichever function has the first prototype. D 3. Orla has been assigned by her project manager to create a function called calculate_power, which will calculate the D 3. Orla has been assigned by her project manager to create a function called calculate_power, which will calculate the power consumed by an electrical circuit. The function will ask the user for two floating point numbers called volts and amps. The function should return the product of volts and amps as a floating point number. Select the best prototype for this function from the options below. int calculate_power(); float calculate_power(); float watts = volts * amps; float calculate_power(volts, amps); 18 Exit 4. There are one or more errors in this function definition. Check each box below which explains an error in this code. function get_sum(){ int a, b; cin >> a >> b; return = a + b; Select all that apply Function definitions must begin with a data type, not the word function Function definitions do not need a semicolon after the final closing bracket.