What is the difference between the two digits in a two-digit number?
A. The sum of the two digits is 8.
B. $$\frac{1}{5}$$ of that number is 15 less than $$\frac{1}{2}$$ of 44.

if the data in statement B alone are sufficient to answer the question while the data in statement A alone are not sufficient to answer the question.

if the data in statement A alone are sufficient to answer the question, while the data in statement B alone not sufficient to answer the questions.

if the data either in statement A alone or in statement B alone are sufficient to answer the question.

if the data in both the statements A and together are not sufficient to answer the question.