According to SRA Principle 3, a solicitor must remain independent, and Principle 7 requires solicitors to act in the best interests of their clients at all times. Part 5.1 of the SRA Code of Conduct allows a solicitor to refer a client who wants advice on life insurance to an independent financial adviser, provided they comply with the requirements set out in that part. The client must be fully informed of any financial or other interest the solicitor has in making the referral, ensuring transparency and maintaining the solicitor's independence. The referral should always be in the best interests of the client. Option B is correct because it aligns with these principles, ensuring the referral is appropriate and transparent. 

Key Point: Solicitors must ensure referrals are in the best interests of their clients, maintaining transparency about any financial interests and adhering to the principles of independence and integrity set out by the SRA.