Answer:
C
Explanation:
If you have more than one variable then you wont know which variable caused the change. Hope this helped, if it did give it a thanks or whatever.
<span>The Cerebrum: The cerebrum or cortex is the largest part of the human brain, associated with higher brain function such as thought and action. The cerebral cortex is divided into four sections, called "lobes": the frontal lobe, parietal lobe, occipital lobe, and temporal lobe.</span>
The portion of the Moon's surface that cannot be directly observed from Earth
<span>The question says,'the orange colour of carrot roots and marigold flowers comes from cell bodies known as chromoplasts. The statement is true. Chromoplasts are coloured plastids, they usually contain a yellow or orange pigment. They can be found in roots, leaves, fruits and ageing leaves and are responsible for the distinctive colours of these plant parts.</span>
The answer is B... im just making a guess so...