Is his study of pea plants, Gregor Mendel used which method to produce offsprings?

In his study of pea plants, Gregor Mendel used Cross-pollination method to produce offspring. Therefore the answer is b. cross-pollination, by using parents that had different traits. The traits of two different organism can be seen in the microscope.

Gregor Mendel is the father of genetics. Im pretty sure he used the cross-pollination method. This method is when you cut the male parts of the flower carrying the pollen and dust that pollen onto a different female part of that flower. He had to prevent self-pollination in order for his experiment to work. Then he used those hybrids to study and conclude his results.