I feel like maybe you're too new to know what Bitcoin Classic is, so I'd better clarify.
Bitcoin Classic was a proposed hard fork which involved raising the block size. They required a certain level of miner consensus which they didn't reach, so the hard fork never occurred.
Until now they have continued maintaining their client and some people have been running it, but they recently decided to stop maintaining in support of BCH.
This has no bearing on BTC.
Thank you for clarification. I will continue to purchase BTC in light of the massive dip. I appreciate it.