The item contains two or more sentences followed by three options for combining them using coordination or subordination. Select the combination that makes the best sense.
For thousands of years, humans spun flax, wool, cotton, and silk fibers into yarn. Then they wove
the yarn into cloth. Humans developed plastics-rayon, nylon, Dacron, and polyester—as the basis
for cloth
For thousands of years, humans spun flax, wool, cotton, and silk fibers into yarn and then
wove the yarn into cloth, and therefore, humans developed plastics—rayon, nylon, Dacron,
and polyester-as the basis for cloth.
For thousands of years, humans spun flax, wool, cotton, and silk fibers into yarn, and they
wove the yarn into cloth; but even so, humans developed plastics—rayon, nylon, Dacron, and
polyester as the basis for cloth.
For thousands of years, humans spun flax, wool, cotton, and silk fibers into yarn and then
wove the yarn into cloth; finally, humans developed plastics rayon, nylon, Dacron, and
polyester-as the basis for cloth.