Answer: The correct option is
(B) √10
Step-by-step explanation: We are given to find the distance between the points (1, 2) and (4, 3).
We have the following distance formula :
DISTANCE FORMULA : The distance between the points (a, b) and (c, d) is given by

Therefore, the distance between the points (1, 2) and (4, 3) is given by

Thus, the required distance between the given points is √10 units.
Option (B) is CORRECT.