In the given sentence, the speaker is doing an action of banging on the table. Adverb modifies the verb. 'Angry' has to be used as the adverb to modify the given verb 'banging'.
Option B - 'Angrily' is an adverb' which modifies the verb ' banging'.
On the other hand, Option A - 'Angry' is an adjective, Option C - 'Angered' is a verb.
Therefore, the appropriate option to complete the sentence is : Option B - Angrily.
The completed sentence, thus, becomes : He is banging the table angrily.