The correct answer is D) some Republicans did not want to upset the balance of government.
The main reason that Andrew Jackson was not convicted after he was impeached was that some Republicans did not want to upset the balance of government.
On February 24, 1868, Andrew Jhonson was impeached by Congress. He was the first United States President to be impeached. Indeed, the House of Representatives voted eleven articles of impeachment and the decision was taken. On March 13, the impeachment trial began at the Senate. But the Senate did not achieve the two-thirds majority needed to convict Andrew Jackson.