None of them. Historians suggest that most pirates would have been illiterate.
Because the Disc was cracked
Whatever floats his boat.
Dear sir, We are writing to you because you have violated copyright...
A letter of marque(https://en.wikipedia.org/wiki/Letterofmarque).
Because they lost an I.
Arrrrr?" Nope... you'd think so, but it'd be the "C."
Because when you're a carpenter in the desert you can't get wood.
Answer: the A level nannies suggest leafy vegetables... But the B nannies force kale.