YTM$=8\%$ when a trader purchased a bond. Immediately the interest rates fell to $7\%.$ What is the

$\%$ change in price of each bond after the decline in interest rates? $6$ points

$10$ year, $10\%$ annual coupon

$10$ year zero coupon bond

$5$ year zero coupon bond

$30$ year zero coupon bond

Perpetuity, $$100$ annual coupon

Rank the bonds in decreasing order of riskiness as measured by Interest rate Sensitivity.