According to the proponents of the Hawthorne effect, giving more attention to employees will do what?

a$.$ Cause employees' morale to lower and productivity to drop.

b$.$ Cause employees' morale to increase and productivity to rise.

c$.$ Cut costs because employees will be inspired to be efficient.

d$.$ Increase synergy, leading to lower costs and higher productivity.

e$.$ Decrease synergy, leading to higher costs and lower productivity.

f$.$ Increase costs because employees will rebel against efficiency measures.