Which are examples of an expository writing style? check all that apply.
more than a hundred million e-mails are sent around the world each day, and they are all vulnerable to interception.
other attacks include the use of viruses and trojan horses.
but how can you bury a mountain of soil? before long, the army engineers came up with a plan that would allow them to do just that.
only a small fraction of the information flowing around the world is securely encrypted.
hall well understood the gamble the germans were taking.
when the war began, elizabeth van lew was considered a southern "spinster."

Read the sentence. the great wave was inexpensive to purchase, costing only about the same as a double of noodles. since lots of copies could be printed and still look good, it made loads of money. which best revises this sentence to create a more formal style and tone? *the great wave was as cheap as buying a double of noodles. since lots of copies could be made and still look great, people started making piles of money. *the great wave was inexpensive to purchase, costing about the same as a double of noodles. since mass quantities could be produced and still look exquisite, it became highly profitable to sell. *the great wave cost next to nothing, practically the same as a double of noodles. since mass quantities could be produced and still look awesome, it became highly profitable to sell. *the great wave was inexpensive to purchase, similar to buying a double of noodles. since lots of copies could be made that still looked amazing, those who sold it made tons of money.