Which of the following is NOT a type of whole of life assurance?

Whole of life assurance refers to a type of life insurance policy that provides coverage for the insured's entire lifetime, as long as the premiums are paid. This type of assurance can come in different forms, which typically include options that involve investment components or returns.

The first three options represent recognized categories of whole of life assurance policies. With profit policies offer bonuses linked to the insurer’s performance, allowing policyholders to benefit from the insurer's investment returns. Unit linked policies are tied to the performance of underlying investment funds, giving policyholders the potential to grow their investment alongside their life cover. Non-profit policies, on the other hand, do not offer bonuses or investment components; they provide a straightforward death benefit without the expectation of additional returns.

While "dividend assurance" may sound like a form of whole of life assurance, it is not a standard type recognized in the same way as the others. The principle behind dividend assurance typically refers to policies that provide dividends as a return of surplus to policyholders, rather than defining the structure of the whole of life assurance itself. As such, it does not fit within the traditional frameworks of whole of life assurance policies like the other options.