I will mark as brainliest to anyone who is able to help me!! :D

Answer:
B; writing systems were developed to record food surplus and supply
Explanation:
an agrarian society is basically an agricultural society which means that its an area that is based on agriculture. i.e producing crops, maintaining crops, and maintaining farmland.
basically a society that produces a lot of agriculture and depends on it, meaning that the most likely answer would be B because they targeted agrarian societies specifically.