The correct answer is: B. 6.0 to 7.2
The pH scale ranges from 0 to 14, with 7 being neutral. A pH below 7 is acidic, and a pH above 7 is alkaline. Most plants prefer a slightly acidic soil pH of 6.0 to 7.2. This is because most nutrients are available to plants in this pH range. If the soil pH is too low, it can be difficult for plants to absorb certain nutrients, such as iron and manganese. If the soil pH is too high, it can be difficult for plants to absorb certain nutrients, such as phosphorus and zinc.
Option A: 5.0 to 6.2 is a slightly acidic pH range. This pH range is suitable for some plants, but it is not ideal for most plants.
Option B: 6.0 to 7.2 is a slightly acidic to neutral pH range. This pH range is ideal for most plants.
Option C: 7.0 to 8.2 is a slightly alkaline pH range. This pH range is suitable for some plants, but it is not ideal for most plants.
Option D: 4.0 to 5.2 is a slightly acidic to acidic pH range. This pH range is not ideal for most plants.