Answer:
a. Data -->Information -->Knowledge -->Decision
Step-by-step explanation:
An information value chain can be defined as the process of converting a raw data into a useful information, by recognizing the value activities to be undertaken.
The proper transformation from data to decision according to the information value chain is Data -->Information -->Knowledge -->Decision.
This ultimately implies that, the raw data is first of all gathered or created, it is then processed to generate information(s), the generated information can then be applied to a plan or problem as a knowledge and lastly, the decision to use the knowledge or not.