Rights issue proceeds determine bank increase Steps:

• Calculate original shares: $40,000 ÷$0.50 = 80,000 shares.
• Bonus issue: 1 for 4 adds 80,000 ÷ 4 = 20,000 shares; total shares = 100,000 (no cash inflow).
• Rights issue at $1.15 per share is fully subscribed, but ratio or number of new shares unspecified.
• Bank increase equals rights proceeds, but cannot compute without issue size.

Not enough information.

Why D is correct:

• N/A; insufficient details to confirm any option.

Why the others are wrong:

• A, B, C: All require assuming unstated rights issue size, which is invalid.

Final answer: Not enough information.