Which sentence has a comma
mistake?
A. Timothy, Rachel, and Benjamin are in the car.
B. During my amazing summer break, I went to
Arizona, and Texas.
C. The kids are laughing, shouting, and having
lots of fun
D. The horses need fresh water, hay, and a good
brushing

Yosemite has spectacular scenery and which has half-time bears. how do i write i. parallel structure?

Underline the adverb clause and what word does the clause modify? my grandma always yells at me because i only own two pairs of socks.

Read the excerpt from the code book. without much hope of a theoretical breakthrough, cryptanalysts have been forced to look for a technological innovation. if there is no obvious way to reduce the number of steps required for factoring, then cryptanalysts need a technology that will perform these steps more quickly. silicon chips will continue to get faster as the years pass, doubling in speed roughly every eighteen months, but this is not enough to make a real impact on the speed of factoring—cryptanalysts require a technology that is billions of times faster than current computers. consequently, cryptanalysts are looking toward a radically new form of computer, the quantum computer. if scientists could build a quantum computer, it would be able to perform calculations with such enormous speed that it would make a modern supercomputer look like a broken abacus. the author’s purpose in this paragraph is to convince the readers to pursue a career in analysis. explain the need for faster technology in cryptanalysis. entertain with interesting stories about supercomputers. argue for more money to develop a quantum computer.