Sentence Correction (SC) | The USDA strictly prohibits vegetables that are grown using genetic

arvind910619 , the difference between 'or' and 'and' is as follows:
-- In baseball, you will be suspended for taking drugs X, Y, or Z -- This means if you take ANY of them, you are suspended.
-- In baseball, you will be suspended for taking drugs X, Y, and Z-- This means you have to take ALL of them to be suspended.

Kevinjoshi ,
The three items are parallel because the use of any of them discounts the ability to be labeled 'organic'.

A. genetic engineering or ionizing radiation,