John Green Began a Group of Companies in 20x0 Which

John Green began a group of companies in 20x0 which he refers to as the 'Green Group'.The companies earn only active business income.The parent company of the group is Green Co.,which is a successful CCPC with $300,000 of taxable income in 20x1.Green Co.has two wholly owned subsidiaries; Black Co.(with taxable income of $50,000 in 20x1) ,and Red Co.(with a loss of $20,000 in 20x1 and unused losses from 20x0 of $15,000) .Green Co.and Black Co.did not incur losses in 20x0.The corporate tax rate is 13%.What is the combined tax liability for the Green Group corporations in 20x1?

A) $39,000
B) $40,950
C) $42,900
D) $45,500