"With its systematic approach, the scientific method has proven useful in shaping sociological studies. The scientific method provides a systematic, organized series of steps<span> that help ensure objectivity and consistency in exploring a social problem. They provide the means for accuracy, reliability, and validity."
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https://courses.lumenlearning.com/alamo-sociology/chapter/the-scientific-method/
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I believe that the method which would produce disease resistant cattle is-
A. Genetic engineering. Hope this helps and good luck!
Blood test will be great to do and just know what infections you doing before you give the blood test.
Answers are:
a) upper motor neuron b) lower motor neurons