Juarezco constructs the following table related to its filing position for a research activities credit. Its book-tax provision for the year, including $3 million for the credit, is $10 million. Resulting Estimated Tax Benefit Probability of Agreement between Cumulative Probability of JuarezCo and IRS Agreement $3 million $2 million 10% 10% 45% 55% $1.6 million 40% 95% $1.1 million 5% 100% JuarezCo's book income tax expense is: Oa. $11 million. Ob. $11.4 million. Oc. $15 million. Od. $12 million.