I believe the answer is B. Compound Sentence.
Hope this helped!
Answer:
the first line in the paragraph
The irony is that you didn't see what was coming that is let alone the example
<span>A rock having solidified from lava or magma. Forms over time</span>
This really comes down to personal opinion.
I believe that the best solution is creating a supportive and stimulating environment that your child can thrive in without over-extending their abilities.