Wavelength and antenna size are related as

• A. ‚âà√≠¬¨‚Ñ¢/2
• B. ‚âà√≠¬¨‚Ñ¢/4
• C. 2‚âà√≠¬¨‚Ñ¢
• D. 4‚âà√≠¬¨‚Ñ¢