Consider the following information regarding corporate bonds:

Rating	AAA	AA	A	BBB	BB	B	CCC
Average Default Rate	0.0%	0.0%	0,2%	0,4%	2.1%	5.2%	9.9%
Recession Default Rate	0.0%	1.0%	3.0%	3.0%	8.0%	16.0%	43.0%
Average Beta	0.05	0.05	0.05	0.10	0.17	0.26	0.31

Company	Market Capitalisation ($mm)	Total Enterprise Value ($mm)	Equity Beta	Debt Rating
Taggart Transcontinental	$4,500	8,000	1.1	BBB
Rearden Metal	$3,800	7,200	1.3	AAA
Wyatt Oil	$2,400	3,800	0.9	A
Nielson Motors	$1,500	4,400	1.75	BB

Your estimate of the asset beta for Nielson Motors is closest to:

a.) 0.59

b.) 0.71

c.) 0.66

d.) 0.42