Relationship between diet and brain size in Homo erectus

What is the likely explanation for the rapid increase in body and brain size among Homo erectus?Group of answer choicesan increase in genes for height of over 5ft. 5 inchesgreater access to protein and improved nutritionreaching for fruits higher in the trees, which increased their height over timethe continuous used of bipedalism

Diet of Homo erectus

Post-cranial (body) characteristics of Homo erectus

What is the connection between nutrition and brain health?

Brain size/shape and intelligence