Concept:Standard form writes a number as a×10n, where 1≤a<10.Solution:Move the decimal point in 0.000437 until it is after the 4: 4.37.The decimal point moved 4 places to the right, so the power is 10−4.Thus, 0.000437=4.37×10−4.Answer:Option A (4.37×10−4)