According to the liquidity preference theory, which of the following statements is (are) correct? :l. Investors perceive little risk differential between short-term and long-term securities. :ll. Long-term rates should be higher than short-term rates because of the added risks. :lII. Borrowers will pay a premium for long term funds to avoid having to roll over short-term debt. :lV. All else equal, investors prefer short-term securities over long-term securities. a. I and IIl only Ob.I, I, IlI and IV c.II, I and IV only d. I, Il and IV only