Which one of the following statements is correct? Select one: a. The instructing attorney is entitled to receive one-third of the total fees charged by the instructed attorney. b. In determining the share of fees payable to the instructing attorney, all payments on behalf of the client and fees charged by the instructed attorney will be included in the calculation. c. The instructing attorney is obliged to issue a statement of account to the instructed attorney. d. The instructing attorney receives instruction from another attorney, the instructed attorney, on a client's case