Question

to help prevent root rot, purchase rooted poinsettias from ______.
a. wholesalers who supply disease - free stock
b. wholesalers using automated irrigation
c. distributors nearest your home
d. dealers with a large inventory

Explanation:

To prevent root rot in poinsettias, the key is to get disease - free stock. Wholesalers who supply disease - free stock (option a) are the best choice. Automated irrigation (option b) doesn't directly relate to preventing root rot. Proximity to home (option c) or large inventory (option d) also don't address the disease - prevention aspect needed for root rot.

Answer:

a. wholesalers who supply disease - free stock