Answer:
46 percent
Step-by-step explanation:
Forty-six percent would be the most logical amount. For the past fifteen years, agricultural production under contract has increased from 30.5 percent in 1990 to 41 percent in 2005. The increase of about 10.5 percent in 15 years. On average, its a 0.7 percentage increase per year.
Between 2014 and 2005, there are nine years. Going by the previous rate, there will be an increase of about nine times 0.7 percentage, which is 6.3. the closest from the list provided is 46 percent.