ANS:A - greater than that computed for ideality.

Positive deviation from Raoult's law means a mixture whose total pressure is greater than that computed for ideality. In a system where there is a positive deviation from Raoult's law, the actual vapor pressure of the components in the mixture is greater than what would be predicted by Raoult's law for ideal solutions. This results in a higher total pressure in the system compared to what would be expected if the mixture followed Raoult's law perfectly. Therefore, the correct option is that the total pressure is greater than that computed for ideality.