It's hard to tell you the answer when I'm supposed to chose one from the multiple choice, when you don't provide the multiple choices
A. stop and check for cross traffic
Explanation:
Major crops include cereals (wheat, sorghum, barley and millet), vegetables (tomato, watermelon, eggplant, potato, cucumber and onions), fruits (date-palm, citrus and grapes) and forage crops (alfalfa).
The first one is the correct answer.