If the total area of a dartboard 30 000 mm² and the area of the target is 700 mm²
The probability of obtaining a target can be written as:
P = 700 mm² / 30 000 mm²
P = 0.0233
P = 2.3%
Therefore the correct answer is option B.
This, assuming the shooter has no experience and rolls the dart randomly within the dartboard area.