Answer:
My guess it would be Es...
Step-by-step explanation:
Because if we were rewriting this in Spanish, it would look like this,
son las diez es dos. If you put any of the other words with it, it doesn't look right in my opinion. But I could be wrong too. I do take Spanish but I haven't done something like this yet. But thats my thought.
Enjoy your day!
Noriya~