Final answer:
The reason for converting the procedure to an open cholecystectomy was the presence of extensive gallbladder adhesions that made it difficult to perform the laparoscopic procedure.
Step-by-step explanation:
The reason for converting the procedure to an open cholecystectomy is option 3) The gallbladder adhesions made it difficult to perform the laparoscopic cholecystectomy. Gallbladder adhesions occur when scar tissue forms between the gallbladder and other surrounding organs or tissues. In this case, the extensive gallbladder adhesions made it challenging to safely complete the laparoscopic procedure, so it was converted to an open cholecystectomy.