Practice Problem

The ¹Hnmr spectrum of the unknown C₁₀H₁₂O₂ compound is shown above. Seven structural formulas of some possible candidates for this compound are presented below. After reviewing the chemical shifts, coupling patterns and integration values shown in this spectrum, select the structure most likely to give this spectrum, and enter the corresponding letter ( A through G ) in the answer box.
Do not enter punctuation (eg. commas or semicolons) or spaces.