A. higher temperatures, less evaporation, less cloud cover, with less retention of greenhouse water vapor trapping more outgoing longwave radiation.
B. lower temperatures, more evaporation, more cloud cover, with the retention of greenhouse water vapor trapping more outgoing longwave radiation.
C. lower temperatures, less evaporation, less cloud cover, with less retention of greenhouse water vapor trapping more outgoing longwave radiation.
D. higher temperatures, more evaporation, more cloud cover, with the retention of greenhouse water vapor trapping more outgoing longwave radiation.