PNL NO FURTHER A MYSTERY

Trader A has made some hefty PnL, meanwhile Trader B arrives out with almost nothing in the slightest degree and his skipped out on volatility in the trading day which he could've profited off of had he been continually hedging as an alternative to just at the time per day.$begingroup$ For an option with cost $C$, the P$&$L, with respect to variati