Final answer:
The correct phrase to tell the time on the clock 12:15 is las doce y cuarto.
Step-by-step explanation:
The correct phrase to tell the time on the clock 12:15 is las doce y cuarto. In Spanish, when it is 15 minutes past the hour, we use the phrase "y cuarto". This means that the answer b) is the correct option. For example, if it were 5:15, we would say "las cinco y cuarto".
Learn more about telling time in Spanish