Which of the following statements is true?

A.
An organism is made up of one or more cells.

B.
A chromosome is a unit of information inside a cell.

C.
Four nitrogen bases code for all of the genetic information in organisms.

D.
all of the above

answer; economic order quantity;

answer is: nuclear fusion produces elements that are heavier than helium.

nuclei combine to form a heavier nucleus, releasing energy.  

for example, fusion of hydrogen atoms at the sun.  

this fusion nuclear reaction is in the inner core of the sun and hydrogen (atomic number 1) is conveted into helium (atomic number 2).  

the inner core is the central region of the sun and all solar energy is produced in the core by nuclear fusion.  

50.23 i believe is correct but don't quote me on that.