If revenues are $1,050,000 under alternative A and $1,080,000 under alternative B, and costs are $950,000 for A and $1,020,000 for B, then using the basic approach in incre- mental analysis, incremental revenues, costs, and net income, in comparing B to A are respectively a. $30,000, $70,000, $(40,000). b. $(30,000), $70,000, $40,000. 0. $30,000, $70,000, $40,000. d $(30,000), $00,000), $(40,000)