Which situation results in a final value of zero? A the overall change in temperature when the temperature goes from −10∘F-10^{\circ}F−10 ∘ F to 10∘F10^{\circ}F10 ∘ F B the total profit made when a person buys an item for $2.25\$ 2.25$2.25 and then sells the item for $2.25\$ 2.25$2.25 C the overall change in altitude of a hot air balloon after rising 212121 kilometers from sea level D the total distance a person travels when he bikes 3.13.13.1 miles to school and then bikes 3.13.13.1 miles back home

Carla was trying to decide what to do saturday evening. she has $100 available to spend for the evening. she has narrowed her choices down to these events: braves game, a concert of an artist she likes, or the georgia aquarium. admission to the braves game is $25, hot dogs cost $10, sodas cost $5. the concert costs $25 for admission, $20 for a souvernir t-shirt, and $10 for a soda. the georgia aquarium has the show of a lifetime with an all you can eat and drink that costs $100. carla does not want to take any driving chances, so in addition to the cost of the aquarium, she will also need to pay for her uber/lyft, which is $15 each way. which option should carla choose if she wants to spend the least? based on that choice, what then is carla's oppotunity cost? fully explain your answer in at least one paragraph.