PT 61 S4 Q14

The number of automobile thefts has declined steadilyduring the past five ... ...

Which one of the following, if true, most helps to explain the facts cited above?
(A) Although there are fewer car thieves now than there were five years ago, the proportion of thieves who tend to abandon cars before their owners notice that they have been stolen has also decreased.
(B) ...
(C) ...
(D) ...
(E) ...

*This question is included in Complete Section: LR-B, Oct. '10 LSAT (PT 61 Sec. 4)