What does "plank" mean in?

Question

Wall Street has come to have more faith in major planks of Schwartz's plan.

Answer 1

Noun
2 a fundamental point of a political or other program : the central plank of the bill is the curb on industrial polluters.

Verb
2 informal another term for plunk (sense 3).

• pay (money) on the spot or abruptly : I gladly plunked down my ten dollars.

Answer 2

Plank is what the pirates make a person walk, into the sea...

Answer 3

A principal item of a policy or program