Which detail from the passage best develops Kennedy's reaction to Dr. Demento's briefcase? Kennedy snapped the handcuffs tightly around Dr. Demento's wrists. "I know my rights!" the villain wailed. "I demand a lawyer!" Kennedy ignored Dr. Demento's pleas and led him to the awaiting police car. When Dr. Demento was locked safely inside, Kennedy went back to pick up the briefcase. "I can't wait to get this back to the station and take a look inside," he mused.
A. "I demand a lawyer!"
B. led him to the awaiting police car
C. went back to pick up the briefcase
D. "I can't wait to get this back to the station and take a look inside,"

the present continuous is a verb tense which is mainly used to indicates that an action is in progress at the moment of speaking.  

it is formed using: person + verb to be (am/is/are) +verb + - ing form  

example: i am studying at this moment .

in addition, the present continuous is also used in order to express things that will or will not happen in the near future.

example: i am having dinner with some friends tonight.

the speaker sometimes   uses it   to express that an action is repeated and it causes irritation on the part of the speaker

example: my sister is constantly complaining about everything.

“asleep in his bed” is personified.

the answer is  loss : )