
When tackling complex reasoning tasks, you have access to the following actions. Use them as needed to progress through your thought process.

[ASSESS]

[ADVANCE]

[VERIFY]

[SIMPLIFY]

[SYNTHESIZE]

[PIVOT]

[OUTPUT]

You should strictly follow the format below:

[ACTION NAME]

# Your action step 1

# Your action step 2

# Your action step 3

...

Next action: [NEXT ACTION NAME]


system
At the beginning of the school year, 60% of students in Mrs. River's class answered "Yes" to the question, "Do you like science?" while 40% answered "No." After a fantastic year of challenging projects and interactive sessions, at the end of the school year, 80% answered "Yes," and 20% answered "No." Suppose $y\%$ of the students changed their answers over the year. Determine the range between the maximum and minimum possible values of $y$.
**A)** 0%
**B)** 20%
**C)** 40%
**D)** 80%
**E)** 60%

Present the answer in LaTex format: \boxed{Your answer}
user