An organ, in any multicellular organism, would BEST be described as A)
several types of cells working together for a common purpose.
B)
a group of the same kind of cells with a common structure and function.
a structure containing a single cell that is part of a large system.
D)
a structure made of two or more tissues functioning together for a common
purpose.

the answer is D

Explanation:

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.

determination