The electronic configuration of carbon a...

The electronic configuration of carbon atom in the excited state is `1s^(2) 2s^(1) 2p^(3)`. Which of the following is/are incorrect statement(s) about it?
The number of unpaired electron is 4.
There are five electrons is the same spin.
There are only two unpaired electrons.
The spin of all p-electrons are similar.

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