The INTELSAT-IV satellite launched in 1974 had two earth coverage antenna and two narrower-angle antennas subtending 4.5°. The signal from narrow-angle antenna was stronger than that from earth- coverage antenna by a factor of

• 17.34/4.5
• 17.34 x 4.5
• (17.34/4.5)2
• (17.34/4.5)4