1. Frequently in textbook reading an entire paragraph is devoted to defining a complex term or idea

Description

Explanation:

'Description' is characterized as the details that the author provides in the complete paragraph for elaborating a compound idea/terminology. Firstly, the description includes the definition of the term followed by a stretched explanation involving examples to substantiate the point along with the restatement of the idea to reinforce it effectively.

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 !

c) vampires in history and modern life.