Final answer:
Account numbers may indeed be assigned by increments of 10 to allow for the easy insertion of new accounts, which makes the answer to the question A. True.
Step-by-step explanation:
The question addresses the practice of assigning account numbers in the context of business or accounting systems. The statement suggests that accounts may be assigned numbers in increments of 10 to allow for easy addition of new accounts in between existing ones without the need to significantly alter the existing numbering system.
This could be seen as a method to leave gaps for potential expansion or to insert new accounts while maintaining some order. The practice of assigning numbers by 10s has been utilized, particularly in older manual systems or in systems where foreseeable expansion is accounted for. Therefore, the answer to the question is A. True, account numbers may be assigned by 10s to facilitate the easy insertion of new accounts.