Question Statement:
Premises: 'Whenever relative humidity exceeds 90% and temperature is between 20$^{\circ}$C and 25$^{\circ}$C, late blight outbreak occurs within 48 hours. No late blight outbreak occurred in the potato field during the 48 hours following Tuesday.' Which of the following must be true regarding Tuesday's weather?
Options:
- (A) Either relative humidity did not exceed 90% or temperature was not between 20$^{\circ}$C and 25$^{\circ}$C (or both).
- (B) Relative humidity was below 50% all day.
- (C) Temperature was below freezing point.
- (D) Rainfall occurred continuously on Tuesday.