
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
Sam has 100 fair coins. Each coin is flipped until it lands on heads or has been flipped four times. What is the expected number of coins that land on heads?
A) 75
B) 85
C) 90
D) 94
E) 100

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