
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
Given the function $f(x) = (\frac{1}{3})^x - \log_2 x$, where $0 < a < b < c$, and $f(a)f(b)f(c) < 0$. The real number $d$ is a zero of the function $f(x)$. Among the following options:
1) $d > a$; 2) $d > b$; 3) $d < c$; 4) $d > c$. The possible correct one(s) is/are \_\_\_\_\_\_ (fill in the number(s)).

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