If you were writing a research paper about wind turbines, which sentence from the passage would be irrelevant to your research? a)the most common type of turbine has blades like airplane propellers. b)over 5,000 years ago, ancient egyptians used wind to sail ships on the nile river. c)people often build the turbines close together in a wind-power plant called a wind farm. d)instead of using that energy for simple tasks, though, turbines turn the energy into electricity.

The answer is B Over 5,000 years ago, ancient Egyptians used wind to sail ships on the Nile River.

i used to know but i learned it a long time ago sorry

explanation:

- "the answers are a and b.  

when cullen speaks of planting while others reap, and standing "abject and mute," he is speaking about the racial injustices present in american society. as these injustices have changed over time, the american identity  has also shifted. those changes are, in turn, reflected in american literature."