Final answer:
In the context of Retirement Services, marketing investment services does not inherently increase compliance risk. Other factors such as deficient review processes and inadequate training do contribute to higher compliance risk.
Step-by-step explanation:
The factors that could raise an institution's levels of compliance risk in Retirement Services include deficient account acceptance and review processes, lack of sound procedures for administration of complex assets, such as derivatives and employer stock, and lack of knowledge and weakness of training programs for staff in Retirement Services.
However, the marketing of investment services for retirement plans does not inherently raise compliance risk, and typically, is a common and necessary practice for retirement service providers. Therefore, the correct answer is 'd. marketing of investment services for retirement plans' as the factor that does not raise the institution's levels of compliance risk in Retirement Services.