I am pretty sure your answer are correct , from what I know. Good job!
Explanation:
An equation is said to be balanced when the number of atoms on both reactant and product side are equal in number.
Whereas an equation where electrolytes in an aqueous solution are represented as dissociated ions is known as an ionic equation.
For example,
can be represented in ionic form as follows.

Now, cancelling the common ions present on both sides of the equation. The resulting, ionic equation will be as follows.

the traits or characteristics we have, is aquired from both parents, so
correct option is :
D: Genes inherited from both parents
Answer:
C is the answer because since it's chemistry particles expanding would most likely be your answer
The answer is 42 neutrons