Main statement: Only if the teaching standard is destroyed,

M: +1.00/-0.25

Each of the following questions has a main statement followed by four statements: 1, 2, 3, 4. Choose the ordered pair of statements where the first statement implies the second, and the two statements are logically consistent with the main statement.

Main statement: Only if the teaching standard is destroyed, will examination result be poor.

1) Examination result is poor.

2) Teaching standard is not destroyed.

3) Examination result is not poor.

4) Teaching standard is destroyed.

The ordered pair of statements is:

[CLAT 2019]

A 2, 3

B 2, 4

C 1, 3

D 1, 2