Why L/C dwindle popular than D/P?

Answers: LC used to be the reigning champion, hand down. It was the great choice and no one could even come close. In reality, there be a time that DP wasn't even a choice.

But like anything else, times (and tastes) money. And I personally contemplate LC got a short time complacent and sure enough, when you start believing the bull your feed yourself, you get passed. And within you have it... DP is very soon the preference amongst its entire industry and LC is a has-been and a wash-up.

By the method... what does LC and DP mean?

Because they did.