Which combination of the following amino acids would attract, repel, and not interact with arginine at pH = 7, respectively?

a) Attract: Aspartic Acid, Repel: Glutamic Acid, Not interact: Alanine
b) Attract: Lysine, Repel: Aspartic Acid, Not interact: Glycine
c) Attract: Glutamine, Repel: Leucine, Not interact: Serine
d) Attract: Tyrosine, Repel: Cysteine, Not interact: Valine

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