Which equation represents the model of performance?

A$)$ Expectations $=f($Performance $$ Capabilities $$ Opportunities $$ Motivation$)$

B$)$ Performance $=f($Expectations $$ Capabilities $$ Opportunities $$ Motivation$)$

C$)$ Capabilities $=f($Expectations $$ Performance $$ Opportunities $$ Motivation$)$

D$)$ Performance Expectations $$ Capabilities $$ Programs $$ Rewards