Please show step or reason, thank you

1) In 2001, Water Corporation hired Dave to install a computer system for the company and paid him $5,000 for the work. Water soon realized there were problems with the system and asked Dave to refund the payment. At the end of the year the dispute had not been resolved. Dave is in the 32% tax bracket for 2001. During 2002, when Dave is in the 24% tax bracket, he issues a repayment to Water. Which of the following statements is true with regard to these transactions?

a. If the repayment is for $5,000, Dave cannot deduct the $5,000 in 2002.

b. If the repayment is for $5,000, Dave can only offset his 2002 tax liability with a credit of $1,200.

c. If the repayment is for $2,000, Dave can offset his 2002 tax liability with a credit of $640.

d. If the repayment is for $2,000, Dave will lose a total of $480 because of the income and repayment.

e. None of the answers provided is correct.

2) Ed has a 25% marginal tax rate and has already recognized a STCL of $16,000 and a LTCG of $9,000, both due to the sale of stock. He is considering the sale of an antique clock held for investment that would result in an $11,000 LTCG. What is the increase in his tax liability if he goes ahead with the proposed transaction this year? a. $3,080

b. $ 600

c. $2,950

d. $2,350

e. None of the answers provided is correct.

3) Amy sells land to her son, Ken, for its FMV of $50,000. Her adjusted basis in the land is $60,000. Which of the following statements is true?

a. Amy's recognized loss is $10,000.

b. Ken's AB in the land is $60,000.

c. If Ken sells the land for $58,000, his recognized loss is $2,000.

d. If Ken sells the land for $65,000, his recognized gain is $5,000.

e. None of the answers provided is correct.

4) During the current year, Helen pays legal and accounting fees for the following reasons:

To draft a will -----------------------------------------------------------------------$1,000

To resolve a tax dispute with respect to Helen's business -------------$3,000

To prepare Helen's Schedule C ----------------------------------------------- $ 700

To prepare the remainder of Helen's Form 1040/Sch. A/Sch. B -------$ 500

Which of the following statements is true with regard to the payment of these fees?

a. Helen can deduct $5,200 from AGI.

b. Helen can deduct $3,700 for AGI and $1,500 from AGI.

c. Helen can deduct $3,700 for AGI and nothing else.

d. Helen can deduct $4,200 for AGI and nothing else.

e. None of the answers provided is correct.