What Is the Correct Order of Structues That a Motor $\rarr$

What is the correct order of structues that a motor nerve stimulation encounters when triggering a contraction?

A) motor nerve $\rarr$ synaptic cleft $\rarr$ sarcoplasmic reticulum $\rarr$ sarcolemma $\rarr$ troponin
B) motor nerve $\rarr$ synaptic cleft $\rarr$ sarcolemma $\rarr$ sarcoplasmic reticulum $\rarr$ troponin
C) motor nerve $\rarr$ sarcoplasmic reticulum $\rarr$ synaptic cleft $\rarr$ sarcolemma $\rarr$ troponin
D) motor nerve $\rarr$ sarcolemma $\rarr$ sarcoplasmic reticulum $\rarr$ synaptic cleft $\rarr$ troponin
E) motor nerve $\rarr$ sarcolemma $\rarr$ synaptic cleft $\rarr$ sarcoplasmic reticulum $\rarr$ troponin