Advise each of the following events on whether it is a source of systematic or unsystematic risk

$($i$)$ Jerome Powell retires as Chairman of the Federal Reserve and Arnold Schwarzenegger is appointed to take his place.

$($ii$)$ Gene Levoff, ex$-$Apple corporate lawyer avoids prison for insider trading.

$($iii$)$ Hundreds of cargo ships and tankers are being rerouted around the southern tip of Africa to avoid Houthi attacks in the Red Sea.

$($iv$)$ A $10$ per cent sales tax is to be imposed soon on low value goods $($LVG or goods at a price of less than RM$500$ each$)$ that are sold online and shipped from abroad to customers in Malaysia.

$($v$)$ The CEO of Phamaniaga Bhd retires because bad health

$($vi$)$ A Florida judge found "reasonable evidence" that Tesla CEO Elon Musk was aware of a dangerous defect in the automaker's Autopilot system but still allowed the cars to be driven, according to a report

$($vii$)$ Bank Negara announces that it will lower interest rate to boost the economy