I'm not 100% sure but I think it's 10:10 because of the Spoons - 10:30.
Use the chain rule to compute the second derivative:

The first derivative is


Then the second derivative is


Then plug in π/4 for <em>x</em> :

A and C is the answer
hope you'll learn from your teacher how?
<h2>
B. Poison</h2>
Lead and arsenic metals are very toxic. If you combine them together, it will most likely create poison.