Answer:
a. Behavioral goal
Explanation:
Behavioral goal -
It refers to the behavior of the person , which need to be altered according to same external factors , in order to be successful , is referred to as behavioral goal .
These goals helps for the self development of the human .
Similarly , in the given scenario of the question ,
The employees need to develop better behavior goals, to be friendly and by maintaining better eye contact with the customers , in order to attract more customers .
Hence , the correct option is a. behavioral goal .