
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
Let $A = \{x | -2 \leq x \leq a\}$, $B = \{y | y = 2x + 3, x \in A\}$, $C = \{z | z = x^2, x \in A\}$, and $B \cap C = C$. Find the range of the real number $a$.

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