Which sentence uses the word colossus correctly? The new apartment building stands out like a colossus amidst the single-story houses in the neighborhood.

The colossus surrounding the farmer's property was made of wood and metal.

Most people with colossus are able to control it through diet and exercise.

The project was a colossus failure because people could not agree on who was in charge or what the goals were.

Which sentence is punctuated correctly?  a.under a microscope; the organisms look a bit like ruffled tennis balls they have armored plates that fit together to make a round shape. b.when the water is disturbed; the organisms respond by glowing this makes swimmers look like floating beams of blue light. c.there is a bay in puerto rico that seems to light up at night; the light comes from tiny organisms in the water. d.the luminescence attracts visitors from around the world people are curious to see; this beautiful otherworldly sight.