A) Bank investments are usually both liquid and safe, offering FDIC insurance up to a total of $250,000 for your checking, savings, money markets, and CDs held at each bank.
B) Other asset types—like fixed-indexed annuities, rental real estate, and alternative investments are options that are not as liquid, but provide safety and potential growth with guarantees backed by the claims-paying ability and financial strength of insurance companies.
C) Investments like stocks, bonds, mutual funds, 401(k)s, and IRAs invested in stock market instruments offer no safety, because they are subject to stock market losses. They can provide higher gains, and are liquid because you can withdraw funds, although you may be subject to capital gains, income taxes, and/or tax penalties depending on which type of account you withdraw money from.