Count property vs Count() method?

Question

Working with a collection I have the two ways of getting the count of objects; Count (the property) and Count() (the method). Does anyone know what

Answer 1

Count() method is an extension method that iterates each element of an IEnumerable<> and returns how many elements are there. If the instance of IEnumerable is actually a List<>, so it's optimized to return the Count property instead of iterating all elements.