What is the difference between an integer and a real number in Go?

• AIntegers are whole numbers, real numbers (floating-point) have fractional parts — Go won't mix them without explicit conversion
• BIntegers are stored on the heap while real numbers are placed on the stack for faster access
• CReal numbers can only be declared with const, because their precision must be fixed at compile time
• DThere is no difference — Go converts between integers and floats automatically whenever needed