How effective are Ginni Rometty's video and e$-$mail criticisms likely to be in

improving IBM's sales performance, and how should she follow up$?$

a$)$ They are ineffective because they focus on negative aspects; she should shift focus away from

sales figures and implement strict monitoring policies.

b$)$ They are highly effective tools that will spur employees into action; she should continue

sending similar messages to maintain pressure.

c$)$ They may not be highly effective as they could demoralize employees; she should engage

directly with teams to understand issues and collaborate on solutions.

d$)$ They will be effective if followed by setting higher sales targets and sending regular

motivational messages