Phenylpropanoyl chloride (C₆H₅CH₂CH₂COCl) reacts with AlCl₃ to give a single product A with the formula C₉H₈O and an ¹H NMR spectrum with signals at δ = 2.53 (t, J = 8 Hz, 2 H), 3.02 (t, J = 8 Hz, 2H) and 7.2-7.7 (m, 4H) ppm. Propose a structure for this compound.

The product of the process described above is subjected to the following reaction sequence (1) NaBH₄, EtOH; (2) conc. H₂SO₄,100 °C; (3) H₂, Pd/C, EtOH. The resulting molecule exhibits five resonance lines in its ¹³C NMR spectrum. What is the structure of the substance formed after each of the steps in the sequence?