Choose from options: Determine if the sentence is true based on the text below:
You need to learn about corn production. When trying to predict whether corn will go up or down in price, it is important to know about the agriculture business and what factors lead to a profitable or a lousy harvest. Corn is something everyone eats at one point in their lives.

How to buy corn commodities<br>Understand what factors affect corn production. When trying to predict whether corn will go up or down in price, it is important to know about the agriculture business and what factors lead to a profitable or a lousy harvest. [substeps] Read up on the kinds of corn that are being sewn.
pick from the following.
 +Yes
 +It's impossible to say
 +No
It's impossible to say