What is the purpose of the 'capacete' installed on top of the pile during its installation? I - To absorb the blows of the pile driver. II - To st...

What is the purpose of the 'capacete' installed on top of the pile during its installation?

I - To absorb the blows of the pile driver.
II - To standardize the tensions applied to the pile.
III - To prevent the pile from breaking during installation.
a) Only I is correct.
b) Only II is correct.
c) Only III is correct.
d) I and II are correct.
e) I, II and III are correct.