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Data Sufficiency.

Mark (a) If the question can be answered by using one of the statements alone, but cannot be answered by using the other statement alone.

Mark (b) If the question can be answered by using either statement alone.

Mark (c) If the question can be answered by using both statements together, but cannot be answered by using either statement alone.

Mark (d) If the question cannot be answered even by using both the statements together.

What is the area bounded by the two lines and the coordinate axes in the first quadrant?

A. The lines intersect at a point which also lies on the lines $3x-4y=1$ and $7x-8y=5$

B. The lines are perpendicular, and once of them intersects the y-axis at an intercept of $4$.

- If the question can be answered by using one of the statements alone, but cannot be answered by using the other statement alone.
- If the question can be answered by using either statement alone.
- If the question can be answered by using both statements together, but cannot be answered by using either statement alone.
- If the question cannot be answered even by using both the statements together.