how to Engrish on the train?

[vir-jin]

If you encounter a foreigner on the train in one of the following situations, what would you say to them?

A
If you saw an elderly person on a crowded train...

1)Please, take my seat.
2)...............(ignore them)
3)Please teach me English!

B
If you saw someone who didn't look well...

1)Do you feel all right?
2)Hey, let me tell you a good joke!
3)Is there a doctor in the house?

C
If you saw a businessman speaking on his cell phone...

1)Maybe you should call later.
2)We don't have that model in Japan yet.
3)Do you want to exchange mail addresses?

D
If you saw someone who looks lost and is looking at the route map...

1)Can I help you?
2)It's a nice picture, isn't it?
3)what color do you like?