Which best describes the big bang theory? a. all matter in the universe has expanded outward from a single point. b. the universe began with one star, which split into many smaller stars. c. the universe has stayed the same size ever since the big bang.

Ihave a singular monitor that is a tv for my computer. recently, i took apart my computer and put it back together. when i put in the hdmi cord and booted the computer to see if it worked, the computer turned on fine but the screen was blue with "hdmi no signal." i've tried everything that doesn't require buying spare parts, any answer is appreciated!