Please choose the correct solution to the question: How do you break a dogbane stalk open in order to access the core wood fiber?

Solution1: Lay the dogbane stalk out on a flat surface. Press your thumb into it to flatten it longitudinally. This will cause the stalk to break in half lengthwise.

Solution2: Lay the dogbane stalk out on a flat surface. Press your knee into it to flatten it longitudinally. This will cause the stalk to break in half lengthwise.

Answer format: solution1/solution2
Answer: solution1