Read the paragraph. (1) Dogs are great pets for families because they teach children many important life lessons. (2) A dog must be walked and fed at certain times during the day. (3) When a child is in charge of these tasks, he or she learns to be dependable and disciplined. (4) Helping to take care of a dog might interfere with homework or other activities, but it’s essential for children to have some responsibility. (5) In addition, dogs are loyal, playful, loving companions. Which is the best revision of sentence 4 to eliminate contradictory information?