The expression \( 5 \times 5 \times 5 \times 5 \) can be simplified. It is equal to \( 5^4 \), which means 5 multiplied by itself 4 times.
None of the options given directly express \( 5^4 \) without additional numbers, but if we follow the notation in the options, we can see what they represent:
- Option A: \( 555^5 \) = 555 multiplied by itself 5 times (not relevant).
- Option B: \( 525^2 \) = 525 multiplied by itself 2 times (not relevant).
- Option C: \( 535^3 \) = 535 multiplied by itself 3 times (not relevant).
- Option D: \( 545^4 \) = 545 multiplied by itself 4 times (not relevant).
It seems there is some confusion in interpreting the options. All options provided seem to point towards different interpretations than \( 5 \times 5 \times 5 \times 5 \).
Assuming you meant simply the expression \( 5^4 \) without misunderstanding the notation of the choices, the answer does not match any of the given options strictly.
Therefore, if strictly considering \( 5^4 \), it does not correspond to any of A, B, C, or D as written.
However, if you were looking to match it to the exponent (which is '4'), it can be understood that the closest option is D (as it reflects a power of 4), but it uses an incorrect base (545 instead of 5).
Please confirm if this is the intended question or if there's an error in the options provided.