
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
In a coordinate plane, point \( A \) is located at \( (10, 0) \), point \( B \) is at \( (0, 0) \), and point \( D \) is at \( (6, 8) \). Calculate the sum of the distances \( AD \) and \( BD \).
A) 18
B) 19
C) 20
D) 21

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