
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
After fully charging his phone, Alex used his phone for $30$ minutes. When he is not using his phone, the battery lasts for $18$ hours, and if he uses it constantly, the battery will only last for $2$ hours. The phone has been on for $6$ hours in total since the last charge. If Alex doesn't use his phone anymore but keeps it on, how many more hours will the battery last?
A) 6 hours
B) 7 hours
C) 8 hours
D) 9 hours
E) 10 hours

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