Answer:
We're going to get an ice cream cone.
Step-by-step explanation:
Y'oull be glad you took a break is incorrect because the first word should be You'll.
Do'nt you want to come with us is incorrect because the first word should be Don't.
Its' so hot outside is incorrect because the first word should It's.
Since these 3 sentences are wrong, that means only the second option is correct.