You are wishing to accumulate $20,000 for an expedition in 3 years' time. To do this, you will make 6 equal deposits (half yearly, with the first deposit today. If you earn 44% per annum compounding twice yearly, what deposit will be needed? (round to nearest cent; don't use $ sign or commas) Select one: o a. $3086.74 O b. $3154.65 O c. $1568.22 O d. $6112.79