In this task, you are given a multiple-choice question about healthcare. Answer the question based on your information and classify your answers into '1', '2', '3', and '4'.

Question: A carnitine deficiency is associated with:
Options: <1> The inhibition of the mitochondrial respiratory chain. <2> The inhibition of protein catabolism. <3> An increase in renal protein catabolism. <4> A failure in the entry of muscle fatty acids into the mitochondria for oxidation. <5> A decrease in hepatic lipogenesis.
4