
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
Tom went to the store and bought 15 pairs of socks for a total of $38. Some of the socks he bought cost $2 a pair, some of the socks he bought cost $4 a pair, and some of the socks he bought cost $5 a pair. If he bought at least one pair of each type, how many pairs of $2 socks did Tom buy?
A) 10
B) 11
C) 12
D) 13

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