Pls help, It would be greatly appreciated. In the ´Congress and Harriet Tubman’s Claim for a Pension´, in the Letter from Sereno E. Payne, What is the author of this letter trying to accomplish?

d is the correct answer.

b is incorrect because it makes food by itself

c is incorrect because us humans don't know how to produce their own food using the sun like plants.

a is incorrect because consumers can depend on carnivores for eating food for consumers to eat the dead organism. same thing with omnivores.

productive most commonly means: achieving or producing a significant amount or result.

explanation:

productive can also mean:

these depend on how the word productive is used. most likely productive will mean   achieving or producing a significant amount or result.

answer; the candidate for vice president;

answer; depression and breathing related sleep disorder(independent);