Answer with Explanation:
Part 1)
The given sine wave is as

The graphical representation of the wave is shown in the attached figure:
Part 2)
For a general wave equation
'A' is defined as amplitude of the wave
is defined as phase of the wave
Upon comparing with the given wave function we observe
1) Amplitude of the given wave is 3
2) Phase of the given wave 
Answer:
IDE hard drives <em>(Integrated Drive Electronics)</em> aka <em>(PATA) </em>or <em>"Parallel ATA"</em> <em>(Advanced Technology Attachment)</em>, were the previous standard before SATA which are faster; IDE drives are disposed with 41 to 44 pins, and they normally use 5V; although to certain extent small laptop 2.5" drives need only 5V, some of them also need 12V; and 3.5" drives require 12V plus 5V for the motor and logic.
Thereby the most suitable answers are <em>B.)</em> &<em> E.)</em> ,
5V and 12V respectively.
Answer: It would be option C.
Explanation: The file name is invalid, so therefore it would make sense to rename the most recent version correctly.