A child is looking for his father. He went 90 metresin the East beforeturning to his right. He Went 20 metres before turning to his right again to look for his father ‘at his uncle's place 30 metres fromthis point. His father was not there. From here he went\]00 metres to the North before meeting his father in a street. How far did the son mecthis father fiom the starting point?

A

80 metres

B

100 metr

C

140 metres

D

260 metres