Which harmony is the most appropriate for the chord?

ANSWER

The chord consists of Ab, C, Eb and F#. The interval between F# and Ab is augmented 6th and the chord leads to the dominant chord in the following measure. A raised 4th scale degree and a lowered 3rd scale degree on iv6 made this chord. Correct answer is 4.
Which harmony is the most appropriate for the chord?
ANSWER
The chord consists of Ab, C, Eb and F#. The interval between F# and Ab is augmented 6th and the chord leads to the dominant chord in the following measure. A raised 4th scale degree and a lowered 3rd scale degree on iv6 made this chord. Correct answer is 4.