3. Bank A, headquartered in Dong Da District - Hanoi, gave a loan of VND 5 billion to Limited Liability Company B, which is headquartered in Cau Giay District - Hanoi; the loan is secured by a mortgage of a house in Hoang Mai District (valued at 4 billion VND). Due to losses in business operation, Limited Liability Company B cannot repay the principal and interest to Bank A on time. The loan contract is signed between the director of Company B and Bank A. Can Bank A file a lawsuit against the director? (2 points) * 4. Analyze the "consideration" - one of the elements of the contract. (3 points)