That is the reason（） we’ve lost so many customers.

A.helping clients to understand the PR world
B.attracting as many investments as possible
C.making a link between selling and buying

A.To withdraw the money.
B.To pay more attention to it.
C.To invest money and efforts.

A.set the tone for one’s company
B.drop strict dress code or early start time
C.back up office rules with reason