Which harmony is the most appropriate for the notes in the rectangle?

ANSWER

The key is chromatically modulated by the sequence repeating two same measures. The chord consists of E, G, Bb and Db , a diminished 7th chord that is resolved by the following tonic in f minor. Correct answer is 1.
Which harmony is the most appropriate for the notes in the rectangle?
ANSWER
The key is chromatically modulated by the sequence repeating two same measures. The chord consists of E, G, Bb and Db , a diminished 7th chord that is resolved by the following tonic in f minor. Correct answer is 1.