A particle of charge Q coulombs is bound elastically to an equilibrium position with a force constant of f newton per metre. The polarizability of the system is

• A. <img src="/_files/images/electronics-and-communication-engineering/materials-and-components/60-1.png">
• B. <img src="/_files/images/electronics-and-communication-engineering/materials-and-components/60-2.png">
• C. <img src="/_files/images/electronics-and-communication-engineering/materials-and-components/60-3.png">
• D. Q
• E. <i>f</i>