How does thermal energy flowing in this pic

I Tried my best

Explanation:

Ice must absorb energy in order to melt (melting is an endothermic process*), so heat is transferred from the environment (which includes your ice cream mixture!) to the ice, making the ice cream mixture colder. You can control how fast the ice cream forms, by modifying the amount of salt you use.

it's all four options.

i just calculated it all out, and not including weekends, and all the different days off. as of this school year (2018-2019) students are spending 2198 hours in school this year