Answer:
B. hope.
Step-by-step explanation:
The sentence "One day, I will hope to study psychology in college" is about future but you don't need the auxiliary "will" to show future tense because you are using the noun "hope" which is already indicating future tense. So If you want to talk about future, you have to choose between "will" or "hope" do not use the two of them together in a sentence like this.
The correct way to say it would be:
- One day, I hope to study psychology in college.
- One day, I will study psychology in college.