单项选择题

Use the following information to calculate the "weighted average number of ordinary shares outstanding" (WASO)? (  )

Ordinary shares, January 1, 20X0
120,000
Shares issued, March 1, 20X0
60,000
Shares repurchased, June 1, 20X0
30,000
Dividends paid on ordinary shares, Nov 1, 20X0
90,000
A、 112,500
B、152,500
C、157,500
D、170,000