Cuál se usa: como o si?

[michaelbr]

In this sentence "Pepe sale de marcha todos los días! -______ siga así, va a acabar mal."
The options are: 1)Porque 2)Si 3)Como 4)Cuando
I'd use Si, which is a possibility. Why si is not correct?

[Rusty]

If you were to use 'si', the subjunctive mood that appears in the sentence wouldn't be needed.

[Julvenzor]

"Como" would be the answer.

Si [conditional] + indicative
Como + subjunctive

A pleasure.

[michaelbr]

If you were to use 'si', the subjunctive mood that appears in the sentence wouldn't be needed.

"Como" would be the answer.

Si [conditional] + indicative
Como + subjunctive

A pleasure.
Muchas gracias.