One difference between the technology of the Plano and that of the Clovis and the Folsom is that the Plano hunted bison using stone weapons. perfected a single type of stone point. made clothing from animal hides. developed a variety of stone points.

Option:  developed a variety of stone points.

Explanation:

Paleo Indians were the first people who lived in North America. They arrive from Siberia through passing the Bering Land Bridge. They killed animals for food and survival in the cold and wild environment. They also gathered roots, berries, wild plants, nuts for food. Plano, Clovis, and Folsom are three different Paleo-Indian cultures. Plano culture found in Colorado.  The Plano developed a variety of spears with sharp points made of stone to hunt animals.

d is the best answer for this question.

the correct answer option is: weapons.

explanation:

tensions rose as the two opposing superpowers competed for 'weapons'.

referring to the cold war (1945-1991), the two superpowers, usa and ussr, experienced a phase of struggle and conflict with each other. these two superpowers considered each other as a threat to their survival and thus opted for policies to strengthen their positions.

the two superpowers never went to war with each other directly but competed for weapons to preserve their positions.