According to the passage
a. grains require an excessive amount of energy to produce
b. meat requires more energy to produce than all other foods
c. livestock have very little destructive impact on the environment
d. it takes about the same number of acres to raise equivalent calories of wheat and beef

i think its:

c. a disadvantage of the proposal is that there will be fewer people under the monarchy.

taking into account that a theme is the central topic a text treats and can be developed through a story, play, poem etc. the following are themes that can be further developed:  

my best friend jeffrey has many unusual interests. (the story could be about each of the unususal interests)

once a man gives his soul over to evil, he can never go back. (this could be a saying or a proverb)

the three sheepdogs lay around the yard all day. (it could be developed detailing how each of these sheepdogs lay around)

a priest's collar has an unusual effect upon people. (it could be developed detailing the different effect upon people)

innocence is a powerful force in a world full of corruption. (it could be developed detailing how is a world full of corruption)

king lear is a play shakespeare wrote later. (it is just a sentence and doesnt give any idea or topic to be discussed in details.

evil often wears the disguise of innocence. (this could be a saying or a proverb)

smh

explanation:

explanation:

the answer its b i got it right when i did it trust