Which one of the following is not correctly matched in the term of Crop and Seed rate?

A seed rate is the quantity of seed of a crop that is required to sow a unit area of land for optimum crop production. It is important to determine the seed rate to determine the yield of hybrid seeds and to compare the best quality seeds.
Here, of the given options, the mustard is wrongly matched. The seed rate of mustard is about 4 to 6 lb/acre.