Plz hurry it's
what has been the impact of declining harvests and years of drought on african subsistence farmers?

a. subsistence farmers refuse to change their traditional ways and do anything different from their forefathers.

b. subsistence farmers continued to plant crops such as maize to make sure they can feed their family.

c. subsistence farmers have begun to plant some drought resistant crops and break away from their traditional crops.

d. subsistence farmers have turned to nomadic pastoralism in search of profits.