In a simple AC circuit, impedances are sometimes represented as complex numbers and combine multiplicatively in series. Compute the product $(2+3i)(4-i)$, representing the combination of impedances, and express the result in $a+bi$ form.

• A. $-11+10i$
• B. $-11-10i$
• C. $11+10i$
• D. $5-10i$

Answer: (C)