If the underlined word is only 'barking', then the correct answer is B) present participle, because those are used to form present progressive tense, as is the case here.
A) would be 'barked'.
C) would be 'bark/barks'.
D) would be 'barked', the same as A.
D is the best answer in this problem
Answer:
yes
Explanation:
because it tell us how was Algernon was in the story
The correct answer to this question is option A. Opposites teach about each other.
