Which sentence is not an example of an effective thesis for an essay comparing two texts about hunger in the united states?

a.

although both drouin and o’neil agree that hunger in the united states has generally declined since the beginning of the 20th century, drouin’s use of personal stories makes a more interesting and more readable article.
b.

o’neil combines testimony from social workers with economic statistics that date back to the 1920s to craft a more convincing argument than the one drouin offers.
c.

drouin’s reliance on personal stories makes her argument less convincing than o'neil’s.
d.

drouin and o’neil are both experienced scholars who write about poverty and hunger in the united states.