A question from the "N" level physics book(blue one)

A metal rod is used to lift the lid from a tin of paint.

Qns:State on change that could be made so that the lid could be lifted with less effort.

And i must say the answer from the answer paper was freaking retarded...

Ans:Use a metal rod.

I MEAN...WTF?????!!!!!USE A METAL ROD TO LESSEN THE FREAKING EFFORT?
I'd rather you use can opener...and its a 3 marks question...
Hmm...wonder why cambridge are such morons...to give such a stupid question.
Tsk..