The correct option is B Lower class limit = 149.5, Upper class limit = 159.5
To find the class limit, in inclusive method, subtract 0.5 from lower score to get lower class limit and add 0.5 to the upper score to get upper class limit.
Lower class limit = 150 - 0.5
= 149.5
Upper class limit = 159 + 0.5
= 159.5