Answer: First Option is correct.
Step-by-step explanation:
Since we have given that
Distance between two towns = 35 km
Distance between two towns on a map = 2.5 cm
According to question,
[tex]2.5\ cm=35\ km\\\\1\ cm=\frac{35}{2.5}\\\\1\ cm=\frac{350}{25}\\\\1\ cm=14\ km[/tex]
So, the scale of map is 1 cm = 14 km.
Hence, First Option is correct.