$1-$ Which of the following is not one of Valuation Heuristics?

Group of answer choices

P$/$E valuation

Discounted cash$-$flow valuation

PEG valuation

Price$-$to$-$sales valuation

$2-$ The disposition effect could be explained by

Group of answer choices

heuristics

base rate fallacy

risk avoidance

emotions, such as regret