please answer case problem 10.2 questions a,b,c

It's probably safe to say that there's nothing more important in determining a bendls raing than the underlying financial condition and operating results of the company issuing the bosd. joc as financial ratios can be used in the analysis of common stocks, they can also be used in the analysis of bonds-a process we refer to as credit analysis. In credit analysis, atrention is directed A Talle of founial Rinten Nin. ratio, (2) quick ratio, (3) net prodir itargin, (4) return on toctl capizal, is) loesterm deite faw mr che ratio, ite kener. for all the others, the bigher tive ratio, the betar. Ithe tatie in mak. of these racion for ix different onmpanith. Qucutions i. Three of these compames hare foinds that carry invernurot-prade ratmos. The oflur ifnu selictaons. Pamies. Heirfif rephain your aelevtions. So Ch the romainane four compunies, ane carnick a hN rating, ooc carnes an A ratin and of tre fB ratco. Which coecyanies are ther