1good child care centers are clean and safe, hire trained staff, and have enough staff for the number of children. 2 these are three important considerations for single parents and working couples who need day care for their children. 3 every day in this country, at least ten million children go to day care. 4 many parents feel guilty that they can't stay at home to take care of their children. 5 but good day care is available if parents take the time to investigate. which sentence in this introduction would be more effective if the writer used it as an opening sentence? a. sentence 4, because it uses guilt to draw readers into the essay b. sentence 5, because it wraps up the ideas in the paragraph c. sentence 2, because it states the number of considerations up front d. sentence 3, because it grabs the reader's attention with a startling statistic