If everything remains the same and prices do not change, the wheat available at $4.90 will be greater than at $3.90 per bushel.
The Law of Supply posits that supplier will supply more of a good when its prices are higher.
If the price of wheat is $4.90, this will be greater than the price of $3.90 and so will lead to farmers supplying more wheat in order to make more of a profit.
In conclusion, the best answer is "greater than."
Find out more on the law of supply at https://brainly.com/question/26374465.