I need anyone's help please, I'm stuck and its timed.

You are making a battery for a science project. you have copper wire for your first electrode. you need to choose a conductor, a second electrode, and a device to plug into your battery. you have already chosen a lemon conductor. complete each statement below about the options that include a lemon conductor.

Which of the following is most likely the next step in the series? a3z, b6y, c9x, d12w, е15v, f18u

Average acceleration: i have no idea how to do this.