50. One distinction between peptide and steroid hormones is that peptide hormones: (A) act through nonspecific receptors, whereas steroid hormones act through specific receptors. (B) are generally water-insoluble, whereas steroid hormones are water-soluble. (C) are more stable than steroid hormones. (D) bind to cell surface receptors, whereas steroid hormones bind to nuclear receptors. (E) bind to their receptors with high affinity, whereas steroid hormones bind with low affinity.