If the increase in the price of yams is used to estimate the inflation rate, this is an example of
The correct answer is: B
Explanation
Inductive reasoning is a method of logical thinking in which you use observations combined with experiential information you already know to arrive at a conclusion.
Inductive reasoning makes broad generalizations from specific observations. From the question, the price of yam (specific observation), is used to make a broad conclusion / generalization (Inflation)