Best Answer Explained in Below-:

The correct answer to the question 'PPP এর পূর্ণরূপ কি?' is B) Purchasing Power Parity. Although your prompt states 'A: People Purchasing Power' is correct, that is inaccurate in the context of economic terminology.

Purchasing Power Parity (PPP) is a fundamental concept in economics that compares different countries' currencies through a market "basket of goods" approach. Essentially, it is used to determine the relative value of currencies by assessing the cost of purchasing the same goods and services in different economies. This economic theory suggests that in the long run, exchange rates should move towards the rate that would equalize the prices of an identical basket of goods and services in any two countries.

On the contrary, "People Purchasing Power" does not represent a recognized economic framework. While it might sound similar, it lacks the specificity and established meaning of Purchasing Power Parity. In summary, option B, Purchasing Power Parity, accurately captures the economic principle intended by the question, while "People Purchasing Power" does not hold an equivalent notion in economic discussions.