$50/50$ Q Multiple Choices

Which method is better when develop the different customers?

For new customers, $.$contact senior officers $($CTOs or CIOs$)$ firstly, analyze the relationship and business planning, and share success stories.

For new customers, find the application department $($such as O&M directors$),$ identify problems that they are facing, and pr ovide valuable solutions for the problems.

For existing customers $($inventory$),$ contact senior officers $($CTOs or CIOs$)$ firstly, analyze the relationship and business plann ing, and share success stories.

For existing customers $($inventory$),$ find the application department $($such as $O$&$M$ directors$),$ identify problems that they ar e facing, and provide valuable solutions for the problems.