According to the dictionary entry, which sentences use elusive correctly? Select all that apply.
A. The politician's speech was elusive, captivating his audience.
B. Scientists have studied Alzheimer's disease for decades, but the cure remains elusive.
C. We were all intrigued by the scent wafting through the air, but its source was elusive.
D. It took years for the elusive detectives to track down the criminals.
E. The explanation for the change in Rita's attitude was elusive; we had no idea what was wrong.