Why did congressional republicans write the wade-davis manifesto?

a. to proclaim their strong support of president lincoln's reconstruction policies

b. to warn the south of a second civil war if it did not grant full civil rights to the freedmen

c. to protest lincoln's veto of the wade-davis bill and accuse lincoln of exceeding his constitutional authority

d. to express their opinion that the south deserved lenient terms to rejoin the union

e. to accuse england of meddling in the civil war?