Question

for a plant with the scientific name of acer rubrum red sunset, red sunset is the ______ name.

a. family
c. species
d. cultivar

Explanation:

In plant taxonomy, a cultivar (cultivated variety) is a plant variety that has been produced in cultivation by selective breeding. The scientific name format here has "Acer rubrum" (the species) and 'Red Sunset' as the cultivar name, as cultivars are often denoted in single quotes after the species name. A family would be a higher taxonomic rank (e.g., Sapindaceae for Acer), species is the binomial part (Acer rubrum), so 'Red Sunset' is a cultivar.

Answer:

d. cultivar