A safety professional is comparing two potential countermeasures for a corridor. Countermeasure A has a BCR of 8.5 and Countermeasure B has a BCR of 3.2. What does this comparison indicate?

1. Countermeasure A is 2.66 times more expensive than B
2. Countermeasure A returns $8.50 in safety benefits per dollar invested and is more cost-effective than B
3. Both countermeasures should be rejected because BCR values above 3 are unreliable
4. Countermeasure B is preferred because lower BCR values are better