If the Total Global Production of Grains Cannot Be Significantly

Multiple Choice

If the total global production of grains cannot be significantly increased in the next 50 years,and the human population continues to increase,by perhaps 50%,how will we feed the people without destroying the world? One strategy that would likely succeed is to

A) increase our use of fossil fuels in agriculture.
B) engineer plants that can grow without sunlight.
C) greatly reduce the amount of meat in our diets.
D) increasingly rely on fungi for nutritional needs.