Answer:
Option 2 or B, 1/2
Explanation:
Technically, Coins only have two sides since they only have two sides we can put it in a form such as the following:
Coins have 2 sides: 50/50
Fractions have only 1 half: 1/2
Since there is only a 50/50 chance lets make it a percentage:
Percentage goes to 100%:
50%...
Since there is 50% chance to land on heads, now lets make it in fraction form:
1/2.
And there is your final answer:
1/2 or B