arduino questions

A code such #define myinteger 117 usually appears on top of a sketch what does it means It is an alternative of writing const myinteger - 117; however, the above code is missing the semicolon at the end None of the above It is method of including a library myinteger to be used in line 117 in the sketch It is a method of declaring a constant. It wlows the IDE to replace any references to the constant name myinteger in the sketch with the given value 117 during completme Which of the following is a complete function? None of these int functint x) return x*x+1:1 int funct: void funct(Serial.print("Hello"):) void functint) Serial.print("Hello" integer function(int x,float y) ..... 1 what kind of output does the function have? O float wrong implementation Integer no output Which of these function headers is the most suitable implementation to this function? A function that calculates the average of three integers, O float average(float x,float y. float x) void average{float x,float y, float:) O float average int x, int y, int x) int averagelintxinty.int) Which of the following statements are correct about an array? 1. The array int num[26): can store 26 elements. 2. The expression num[1] designates the very first element in the array. 3. It is necessary to initialize the array at the time of declaration 4. The declaration num(SIZE) is allowed if SIZE is a constant. O 1 O 1.4 O 2.3 . 2.4