'A' transfers to 'C' the debt which is due to him from 'B'. 'A' is indebted to 'B' at that time. 'C' is sued by 'B' for the debt which is due to 'A' by 'B'. Can 'B' set off the debt due to him by 'A'-

• A. Yes, though he was unaware of 'C' on the date of transfer
• B. No, because 'C' was unaware of it
• C. cannot be settled
• D. 'B' transferee of actionable claim does not accept subject to all liabilities