Combine like terms: group the \(d\) terms and the constants separately.<br><br>
&bull; Like terms with \(d\): \(9d - 5d = 4d\)<br>
&bull; Constants: \(8 - 3 = 5\)<br>
&bull; Result: \(4d + 5\)<br><br>
Final Answer: A: \(4d + 5\)