$($Analyzing the security market line$)$ Your uncle just learned from his fnancial advisor that his mbirement portblis has a bota of $1\mathrm{.}79.$ He has furned to you to explain to him what this mearts Specificalt, describe what you would expect to happen to the value of his refrement fund if the following were to occur:

a$.$ The value of the market portiflio rises by $6$ percent.

b$.$ The value of the market portolis drops by $6$ percent.

e$.$ Is your unde's retirement portfollo more or less rblky than the market portlolio? Explain.