Identify the true statements about the tax rates for various forms of business after the new laws passed at the end of 2017?
a. The tax rates for C corporations were reduced to a flat 21%
b. Pass-through businesses, such as sole proprietorships and partnerships, may qualify for a 20% deduction
c. The tax rates for S corporations and limited liability companies (LLCs) remained the same
d. These changes only apply to businesses with an annual income below a certain threshold