Answer:
c. decision informity. 
Step-by-step explanation:
Since in the question it is mentioned that there is a interaction of Agency employees with the employees of Taco bell for different types of job as they need the knowledge regarding the product and plans that increased the decision informity 
As if you have great knowledge and information so you are able to take the right decision i.e. ultimately good for a company 
Therefore the option c is correct