For a U.S. corporate bond, use 30/360 and discount the remaining cash flows at the semiannual yield.

• Semiannual coupon = $1,000 × 8% / 2 = $40
• Yield per semiannual period = 5% / 2 = 2.5%
• Remaining coupon payments = 6
• Days accrued from Jan 1 to Feb 3 under 30/360 = $$30(2-1) + (3-1) = 32$$
• Days in coupon period = 180
• Time to next coupon = $1 - 32/180 = 148/180$

Dirty price:

$$P = \sum_{k=0}^{5} \frac{40}{(1.025)^{k + 148/180}} + \frac{1000}{(1.025)^{5 + 148/180}}$$

This evaluates to approximately:

$$P \approx 1080.35$$

So the correct answer is $1,080.35.