You will have to provide the comparison notes for anybody to answer this question correctly.
D. To figure out the hidden meaning of a text
I think it is <span>Steganography?</span>
D: Ivan is often blamed for things that are not his fault
y = 7x - 15
Since you're solving for the y-intercept, the value of x is zero.
y = 7(0) - 15
y = 0 - 15
y = -15