Lalita is writing a problem-and-solution essay about ways to improve school lunch choices. Which sentence is the best thesis for her essay?
A
School lunches can be healthier and tastier with just a few simple changes.B
Schools are not responsible for making sure students eat healthy food during every lunch.C
School lunch breaks are a chance for students to practice social skills with their peers.D
School lunches are unappealing because fresh food is too expensive for schools to afford.