In substitution coding, looking at the first and last letters is often enough to eliminate incorrect options. Here, $5 \rightarrow \text{M}$ and $3 \rightarrow \text{R}$, so the word must start with M and end with R. All options comply, so next check the vowel positions ($8 \rightarrow \text{A}$) to distinguish "MANAGER" from other choices.
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5 = M, 8 = A, 6 = N $\rightarrow$ MAN_____
0 = G, 1 = E, 3 = R $\rightarrow$ _____GER
Combined: MANAGER