Need help with practjce

Sundeep has decided to short sell 1,000 VWY shares (NOT eligible for reduced margin) at the current market price of $5.70. He made the required deposit of $2,850 at the time of the transaction. Assume the price of the VWY shares declined to $3.55. What additional amount would Sundeep have to deposit in his account? a) $0 Ob) $1,710 O c) $2,475 d) $5,325