Let’s book profits on Citigroup (C) and Western Digital (WDC), earning excellent rates of return and freeing up capital for new trades. C May Week Two (5/14) 74.50 Put Current Stock Price: $76.39 Cash in Hand: $0.60 Action: Buy to close the C May Week Two (5/14) 74.50 Put for around $0.03 Profit: $0.57, or…