grade_label(score) that returns "Pass" if score >= 40, else "Fail", implemented as a single-line conditional (ternary) expression rather than a multi-line if/else statement.grade_label(55)
'Pass'
55 >= 40.
grade_label(39)
'Fail'
39 < 40.
Python's ternary syntax: `value_if_true if condition else value_if_false`.