
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
A floor is entirely covered with tiles in a repeating pattern, featuring both dark and light tiles. If each corner of the tiled floor exhibits the same pattern and the entire floor follows this motif, what fraction of the floor is covered by dark tiles assuming that in each repeating $4 \times 4$ pattern, two rows consist of two dark tiles followed by two light tiles and the remaining two rows consist of light tiles alone?
A) $\frac{1}{5}$
B) $\frac{1}{4}$
C) $\frac{1}{3}$
D) $\frac{1}{2}$
E) $\frac{2}{5}$

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