Answer:
CITY A has the highest water vapour and the least relative humidity
Step-by-step explanation:
The dew point temperature is the temperature above which the water vapour will convert into liquid water.
The relative humidity is the ratio is the current water vapor content to the maximum amount of water that can be present in the air
Therefore although the temperature may be high yet the relative humidity can be considerably low
Hence, the correct option must be CITY A