When we often interrupt a person who's speaking to us, we're likely to give the impression that
a. we're knowledgeable about the topic of discussion.
b. we're really interested in what the speaker is saying.
c. we want to hear more about the topic being discussed.
d. we aren't really listening to what the speaker is saying.

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.