Study the following statements and identify the correct combinations of statements.
Statements:
(A): The going of step is the vertical distance between two successive riser-faces.
(B): String is the sloping members which support the steps in a stair. They run along the slope of the stair.
1
Statement A is true but statement B is false
2
Statement A is false but statement B is true
3
Both statements are true.
4
Both statements are false.