Which of the following statements best describes the signals required to appropriately target a membrane protein with th

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Which of the following statements best describes the signalsrequired to appropriately target a membrane protein with theC-terminus anchored in the membrane and the N-terminus located inthe lumen of the ER?
a.) A signal sequence at the N-terminus and a stop transfersequence at the C-terminus
b.) A signal sequence at the N-terminus only.
c.) A start transfer sequence in the middle of the proteinand a stop transfer sequence a short distance further toward theC-terminus
d.) A stop transfer sequence at the N-terminus only.
e.) A signal sequence at the C-terminus only