When Evidence Reveals That Two Conditions Are Linked, for Example

When evidence reveals that two conditions are linked, for example, illiteracy and teenage pregnancy, policy analysts can know:

A) that the first condition causes the second, which is defined as the consequence
B) that the second condition causes the first, which is defined as the consequence
C) that the two conditions are linked in mutual causality
D) nothing; more study is needed to determine whether causality, or mere correlation, exists