To improve understanding of the excerpt, which questions are best to ask? Select 5 options. What does “encryption” mean?
What is “public key cryptography”?
What kind of encryption was available a long time ago?
What are “key distribution problems”?
Where can I buy an RSA cipher?
What are “cryptanalysts”?

Which statement best expresses the meaning of these lines from “the courage that my mother had”? that courage like a rock, which she / has no more need of, and i have. a. the speaker equates her mother's courage with a rock. b. the speaker needs the kind of courage her mother showed. c. the speaker realizes her mother no longer needs courage d. the speaker realizes her mother found courage in rocks.

The story line remains the same. the kids live in what was then one of the remaining beachfront slums, down the coast from the expensive malibu area. the beach was ruled by surfers, but in the afternoon, when the waves died down, some of the surfers, or their younger brothers, fooled around on skateboards. one day, skip engblom, the shop owner, comes up with a key breakthrough, polyurethane wheels: "they grip." with the additional traction, the z-boys try skating the sides of the big, open drainage canal that runs through the area. then comes a brainstorm: because of a drought, the area's swimming pools were drained. the kids started "borrowing" pools when the owners weren't home, to skate the curved sides.” where did “the lords of dogtown” originally practice their tricks? a. the beach c. an open drainage canal b. empty pools d. none of these

Tia and lin had been best friends since kindergarten. both avid soccer players, the girls decided to try out for the high school team together. unfortunately, there was just one open spot, so only one of the girls would be chosen. they both worked hard, and on tryout day, they did their best. when the team roster came out, lin was excited to see that she had made the team but sad that tia had not. tia was happy for her friend and vowed to work harder so she would make the team the next year. which sentence is the exposition of the passage