The writer wants to add a word or phrase to the beginning of sentence 9 (reproduced below), adjusting the capitalization as needed, to introduce the argument in a way that demonstrates how it relates to the ideas presented in the previous paragraph. This argument, like others made by the Anti-Stratfordians (for example, their claim that Shakespeare’s authorship is discredited by irregularities in the spelling of his name that were quite common at the time) is completely unconvincing.

Which of the following choices best accomplishes this goal?

Moreover,
A

Similarly,

Similarly,
B

Above all,
C

By contrast,
D

However,
E