As a purchasing manager for a company specializing in beauty creams, you depend on a specific type of oil for your products. However, this oil does not significantly impact the product's quality, and only two suppliers offer it. In discussions with your product team, you're considering the possibility of substituting this oil with another type with a broader supplier base. According to the Kraljic Matrix, how would you classify this oil? A. A very important item B. A bottleneck item C. A strategic item D. A leverage item