"Duane doesn't think he passed the test, although he studied several hours last night."
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In poem daffodils-how do we know that the yellow daffodils has a long lasting effect on the speaker.

Which sentence best build the suspense

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.