单选题Which of the following is NOT a common or correct use of a custom control？（）A Adding a company logo to business documentsB As the UI widgets for 1 specificXPage that will never be replicated by any other XPages， everC Adding mailing label information t
题目
单选题
Which of the following is NOT a common or correct use of a custom control？（）
A
Adding a company logo to business documents
B
As the UI widgets for 1 specificXPage that will never be replicated by any other XPages， ever
C
Adding mailing label information to mail and memo pages
D
As a control that needs to appear conditionally， depending on the result of a formula