Could you please answer all of these question comprehensively as soon as possible, thank you so much . Thumb up for sure :)

(a) A current-account surplus is not always a sign of health; a current-account deficit is not always a sign of weakness. Comment. ( 2 marks) (b) What risks do dealers confront in the foreign exchange market? How can they cope with these risks? ( 2 marks) (c) Suppose a currency increases in volatility. What is likely to happen to its bid-ask spread? Why? (1 mark)