tayyab

I'm new to CCTV, so please pardon me if I ask some basic questions. We have 4 shops, 3 shops are very close, we have installed 3 wired CCTV cameras, but 4th shop is little far away, almost 40 meters away, we can take wire there because its across the road, my central location where DVR is placed is in the basement, anybody can suggest me what is the best solution in this case?