Which of the following statement about the head of a chlorophyll molecule is incorrect:

1. A Option A: It is a porphyrin ring or tetra pyrrole ring structure
2. B Option B: It is flat, square and light absorbing
3. C Option C: Composed of carbon and nitrogen atoms with Magnesium as central metal ion, which is coordinated with nitrogen.
4. D Option D: It is hydrophobic

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