Write the next sentence in the following story.

How to travel around china
Be economical.
Prepare for an economical and extensive travel. How you travel depends on your personality and how rich you are.

Select from:
(A). Cultured people rarely need a car to travel in china, but if you live in an area with a vibrant landscape, then no car is required. Learn about the type of climate you will be visiting.
(B). It's a good idea to start and end with a budget for your expenses. Do not take on the burden of running around the country all the time.
(C). Live in basic areas and stay busy in your accommodation. Don't spend a lot of time on these places, as they will be expensive.
(D). If you are wealthy and only want a comfortable and brief tour around china, you only need a passport and a credit card, but you will only get the impression that china is nothing more than a collection of big cities. An economical and extensive travel is better for you to understand the unique culture and traditions.. The answer should be
(D).