Which of the Following Locations Would Contribute to Mid-Latitude Cyclogenesis

Multiple Choice

Which of the following locations would contribute to mid-latitude cyclogenesis?

A) where air converges and accelerates as it passes from an upper air ridge to an upper air trough
B) where air spreads out and accelerates as it passes from an upper air ridge to an upper air trough
C) where air converges and slows as it passes from an upper air trough to an upper air ridge principles
D) where air spreads out and accelerates as it passes from an upper air trough to an upper air ridge