My sister，an inexperienced rider，was found sitting on the bicycle _________ to balance it．

A．having tried

B．trying

C．to try

D．tried

陈某捏造朱某嫖娼的事实向公安机关举报，企图使朱某受到治安管理处罚。对陈某应当按照诬告陷害给予治安管理处罚。