Разложите на множители \(3\sqrt {c} - c\sqrt {3}\)

• \(\sqrt {3c}( \sqrt {3} - \sqrt {c})\)
• \(\sqrt {3c}( \sqrt {c} - \sqrt {3})\)
• \(\sqrt {3}( \sqrt {3} - \sqrt {c})\)
• \(\sqrt {c}( \sqrt {3} - \sqrt {c})\)