The answer is C.

At the time of purchase, the stock price is $25.00, so the options are ATM with strike prices of 25.

• Cost of two calls = 2 × 3.40 = 6.80
• Cost of one put = 2.30
• Total initial cost = 9.10

An ROI of 30% means profit must equal:

• 0.30 × 9.10 = 2.73

So the total payoff must be:

• 9.10 + 2.73 = 11.83

Now solve by region:

• If $S \ge 25$:

  • Put expires worthless
  • Payoff = 2(S - 25)
  • 2(S - 25) = 11.83
  • S = 30.915 ≈ 30.92

• If $S \le 25$:

  • Calls expire worthless
  • Payoff = 25 - S
  • 25 - S = 11.83
  • S = 13.17

Therefore, the ROI equals 30.0% at $13.17 or $30.92.