1. (2 points) In Ct t, define a double pointer d and dynamically allocate an 2. (2 points) Following question 1, how do you free the allocated memory? 3. (2 points) In a Queue data structure, suppose the following items are array of 20 doubles to d. enqueued in that specific order: (30, 20, 30, 20). That is, 30 is enqueued first, followed by 20, etc. Name the item that is output after a dequeue operation