The expression given is \( 7c^2 + b + 5a + 1 \). The terms in this expression are \( 7c^2 \), \( b \), \( 5a \), and \( 1 \).
Now let's look at the options provided:
- 4 - This is not a term in the expression.
- b - This is a term in the expression.
- 9b - This is not a term in the expression as it does not match any terms from the original expression.
- 7c^2 - This is a term in the expression.
So, the correct selections are:
- b
- 7c^2