Final answer:
The tonic of E-flat minor is E-flat. It is the first note of the E-flat minor scale and serves as the central note around which the scale is structured.
Step-by-step explanation:
The tonic of E-flat minor is E-flat. In music theory, the tonic is the first note of a scale and serves as the home base around which the other notes revolve. For the scale of E-flat minor, E-flat is that home base or tonic note. You can think of the tonic as the note that gives a key its name; thus, in E-flat minor, the key is named after its tonic, which is E-flat. Therefore, the correct answer to your question is 1) E-flat.