The climate graph shows moderate temperatures (i.e. not too cold winters and not too hot summers) with most precipitation coming in the winter. This indicates a climate near the ocean. As well, the mean temperature is 10.1 degrees Celsius and the average annual precipitation is 1044 mm which is Vancouver's climate. Therefore, the region is W.

Now, Vancouver is in a predominantly coniferous forest biome especially near the mountains. The type of soil associated with a coniferous forest is podzol. The key distinguishing feature of a podzol is the "Grayish sand, leached and ashy" layer. Therefore, the answer is T (C).