Ivy must perform a formal observation of one preschool classroom. As she sits in a desk at the back, a few children approach her to ask if she wants to play with them. What is the appropriate way for Ivy to react? A. Put her things aside and play games for a little while. B. Act like she does not hear the children and continue to observe. C. Simply explain to the children that she is there to observe. D. Leave the room because the children have noticed her.