The farmer will most likely encounter the small weeds that had begun to grow and develop in his absence in his corn field. The field was left unprotected without any pesticides or insecticides. The weeds would not have been removed for two whole weeks, which will lead to their increased growth. They will absorb all the nutrients and the corn plants will start to starve.
hence, the correct answer is 'Option A - small weeds began to grow and develop'.
