You to understand how a president gets elected through the general election process.
a.
timeline
c.
compare organizer
b.
flow chart
d.
venn diagram

The answer is:Flow chart

Explanation:

A compare organizer cannot be possible, as it is not comparing elections of two or more presidents, in this context. A Flow chart is helpful to describe processes, explaining steps and changes, exactly what we need here. A Venn Diagram is used to compare as well, two things that share something in common. An finally the timeline is mostly used for narrating events in chronological order.

i would think its c but i'm not sure

the answer is subjective. i personally agree with the first answer for this question.

if one isn't strictly talking about objects then the correct answer would be 'my eyes' since according to this riddle i am asleep and in order to answer/open the door i need to open my eyes first of all.

however, if one is specifically looking for an object, then the first thing i would open would be the door

hope this !