Final answer:
Pastoralist men are both cooperative internally and aggressive towards outsiders, and they are capable of making quick, independent economic decisions, fulfilling the criteria of both a) and b), hence c) is the correct answer.
Step-by-step explanation:
Typical traits of pastoralist men around the world include a tendency to be cooperative with each other and a level of aggression towards outsiders, as well as the necessity of making important economic decisions rapidly and independently. Pastoralist societies necessitate mobility as herds must move regularly to fresh pastures. This has cultivated a strong division of labor based on gender and age, where men often make decisions regarding resources and the security of their animals, buy and sell animals, manage herds, and settle disputes, while women tend to process animal products such as cheese and yogurt and have responsibilities related to the maintenance of camps and family care. Therefore, the correct answer would be c) both of the above.