Mr. Martin's sixth-grade class includes some emergent readers who are new to the country. He reads to them a story with many pictures, stopping frequently to discuss what is happening. In which way could this activity best increase the reading comprehension development of these emergent readers

The controlled use of fire by hominids: (a) limited the expansion of hominids into certain environments, such as dry grasslands. (b) decreased the amount of food energy available in the hominid diet. (c) contributed to geographical expansion and food production techniques in positive ways. (d) has been shown to contribute little to the digestive process of hominids.