C. waste products from food crops such as straw from cereals and bagasse
from sugarcane have come uses. Explain
the importance of waste products such as these

*meditation

*music

*reading

*playing games

*going out to eat

i believe the answer is: b. mr. head had a long, tube-like face with a rounded open jaw and a short depressed nose.

this is because in the un-revised sentence it said that mr. heads face was long and tube-like, and he had a rounded open jaw. this is not a very grammatically correct because of how it seems to drag on with the and, replaced with, with, makes it sound more fluent in the description.

your awnser would be b.

we need to see the document to answer the question