D. Or A. It’s between those two
The F1 generation will appear to be only Bt
Between Jupiter and Uranus
ACHONDROPLASTI DWARFISM is a condition that is characterized as long, narrow trunk, short limbs and a large head. It is the most common type of dwarfism and it occurs in about 1 out of 40.000 babies. Other features of the condition include: protruding jaw, flattened bridge of the nose, forward curvature of the lower spine and bow legs.
Pretty sure the answer is oxygen, as it is produced in photosynthesis and consumed in respiration.