Which of these is a metal?

Don't you think that cooking foil is metal? Would the word aluminum ring a bell?

of course cooking foil is a metal. At least all my teachers taught me Aluminium was a metal. On what grounds would you say it wasn't?

Happy Hippie - Yes, when I last looked, aluminium was a metal (re aluminium - I'm a Brit).

I’m surprised with how frequently multiple answers are correct.

Throw out the periodic table, Al (13) needs to be removed. Aluminum is classified as a metal, sigh. Does anyone read the questions before they go live?