WILL GIVE BRAINLIEST! 20 POINTS! PLZ HELP! What does the following line of code do?

if (num2==50){

A. It creates a variable called num2 and sets it equal to 50.

B. It checks whether a variable called num2 is equal to 50.

C. It prints num2 == 50.

D. It requests user input if the variable num2 is equal to 50.

For each of the following claims, determine whether they are true or false. justify your determination (show your work). if the claim is false, state the correct asymptotic relationship as o, θ, or ω. unless otherwise specified, lg is log2.(a) (b) (c) (d) (e) (f) (g) (h) (i) (j)n+1 =22n =2n =1 =ln2 n =n2 +2n−4 =33n = 2n+1 =√n = 10100 =o(n4) o(2n)θ(2n+7 ) o(1/n)θ(lg2 n) ω(n2 )θ(9n ) θ(2n lg n )o(lg n) θ(1)

David is in week 3 of his current ashford course and has a paper due by monday night at midnight. he has finished everything but the concluding paragraph. as he boots up his computer to work on it, he sees a flash across the screen and then the screen goes black. he begins to panic as he tries desperately to turn the laptop back on. david should have saved his work on what kind of portable device?

Which one of the following is considered a peripheral? a software b mouse c usb connector d motherboard