Given changes
\( + stands for \div \)
\( \times stands for + \)
\( - stands for \times \)
\( \div stands for - \)
other choices (a)(c) and (d) do not satisfy
Therefore, take (b)
\( 46 - 6 + 4 \times 5 \div 3 = 71 \)
\( LHS 46 \times 6 \div 4 + 5 - 3 \)
\( \Large 46 \times \frac{6}{4} + 5 - 3 \)
= 69 + 5 - 3 = 71 = RHS