Effect of Interest rates on options

[Arka Bose]

Tuckman says that if we write an option, and the interest rates fall, then there will be loss to the option writer and gain to the option holder.

But, rho (greeks) states otherwise, it says that call option holder gains if there is increase in the interest rates.

I am confused here?

 

[Arka Bose]

My bad, so it was options on the bond, i got it