The correct option is B 1.7 m
The SI unit of length is metre(m).
Since the given height is in centimetre(cm), we have to convert it in metre.
We know that,
1 m = 100 cm Or 1 cm = 0.01 m
Therefore,
170 cm =170100= 1.7 m
Thus, the height of Ram in SI unit will be 1.7 m.