Question 4 12.5 pts Let's say I typed out the following Visa card number: 4888 6053 7432 0189 Is this number valid, and if not, which of the following mistakes could have been made? This is a valid Visa card number. The 5th digit from the left (6) should have been a 5. The 6th digit from the left (0) should have been a 1. The 7th digit from the left (5) should have been a 4. The 8th digit from the left (3) should have been a 2. Question 5 12.5 pts Consider the following partial credit card number: 4777 2032 6784 202? What value should the check digit be? Enter a single digit