Choose the statement that best describes QuickBooks Online's functionality related to sales forms and products and services: 
a) QuickBooks Online does not support sales forms or product/service tracking. 
b) Sales forms and products/services in QuickBooks Online allow for better organization and tracking of income. 
c) QuickBooks Online only allows manual entry of sales forms and products/services. 
d) Sales forms and products/services in QuickBooks Online are only applicable to inventory businesses.