A coin is flipped 7 times, what is the probability that the next flip will be tails

How do I do this?

a- 1/1
b- 1/7
c- 1/8
d- 1/2

4 answers

1/7?
Each time you flip it, the coin either comes up heads or tails. There are only those two possibilities.
so 1/1?
No. You're looking for an expression that means there's one chance out of two chances.