If Max and Matt Are Identical Twins and You Know

Multiple Choice

If Max and Matt are identical twins and you know that Max has schizophrenia, what can you say about Matt?

A) Matt will definitely have the disorder as well.
B) Matt has the same probability of having the disorder as the normal population.
C) Matt has approximately a 50% chance of also having the disorder.
D) Matt has no genetic likelihood of developing the disorder; he will only develop the disorder if exposed to the right environmental factors.