challenge: What type of yarns was Texas Mill spinning in 1951?
  
  A. Medium-weight wool yarns from 30's to 50's count
  B. Coarse linen yarns from 5's to 15's count
  C. High-class combed and carded hosiery yarns from 20's to 40's count
  D. Low-quality worsted yarns from 10's to 20's count
  Answer: 