Read the excerpt from chapter 4 of the strange case of dr. jekyll and mr. hyde.

at this moment, however, the rooms bore every mark of having been recently and hurriedly ransacked; clothes lay about the floor, with their pockets inside out; lock-fast drawers stood open; and on the hearth there lay a pile of grey ashes, as though many papers had been burned. from these embers the inspector disinterred the butt end of a green cheque book, which had resisted the action of the fire; the other half of the stick was found behind the door; and as this clinched his suspicions, the officer declared himself delighted.

how does this excerpt develop the plot?

the condition of the room and its contents cause mr. utterson and inspector newcomen to plan a trip to the bank in hopes of catching mr. hyde.
the condition of the room and its contents cause mr. utterson and newcomen to start investigating someone other than mr. hyde.
the condition of the room and its contents cause mr. utterson and inspector newcomen to consider mr. hyde as a murder suspect.
the condition of the room and its contents cause mr. utterson and inspector newcomen to contact dr. jekyll to see if he can provide any answers.

The condition of the room and its contents cause Mr. Utterson and Inspector Newcomen to plan a trip to the bank in hopes of catching Mr. Hyde.

Explanation:

Robert Louis Stevenson's gothic novel "The Strange case of Dr. Jekyll and Mr. Hyde" is about the dual personality of a good doctor who had an evil alter ego. The evil persona even murders people, eventually leading to the intentional sui cide of the original man Jekyll.

The excerpt in the question is from the fourth chapter titled "The Carew Murder Case". Here, inspector Newcomen and Mr. Utterson had gone on investigating the actions of Mr. Hyde for they had seen him act suspicious a lot lately. So, when they had gone to check his room, they saw that the room was in disarray, with burnt papers, lockers opened in a rush and so on. Then, the inspector declared that he might know what the situation is and went to the bank. There they found Mr. Hyde's account had been credited with several thousand pounds. This scene develops the plot for it finally shows a bit of proof for the lawyer and the officer to continue investigating Hyde and try to prove his guilt. They now have reason enough to suspect Mr. Hyde of all the bad misfortunes happening around.