At the height of his fortune, Masayoshi Son, a Japanese businessman known for making very accurate forecasts, was said to be worth a record $$78$ billion. He was a victim of the dotcom bubble burst in $2000,$ when he lost more than $$59$ billion when his SoftBank shares plummeted $($which would be over $$1$ trillion today when taking into account inflation$),$ according to Forbes. Some claim it was the single biggest overnight loss in net worth. SoftBank shares plummeting was a total shock considering the strength of the bank brand and how convincing the future of SoftBank looked from Masayoshis perspective. Still, Son continues to be a billionaire with the prospect of investing in similar stocks in the future, and according to Bloomberg, he has a current net worth of $$13\mathrm{.}3$ billion as of Nov. $14.$ Choose the most appropriate answer below;

Question $5$ options:

Masayoshi Son may have fallen for a badly framed market analysis which misled him to invest in Softbank shares therefore losing money significantly.

A cocktail of biases is involved here such as regret avoidance, mental accounting, and conservatism. Masayoshi Son will be more careful in the future and may probably avoid the risk of losing money in the future.

Masayoshi being an astute investor became overly confident which eventually caused his loses. In addition he may have based his decision on limited analytical processing capabilities which may have caused him to invest such huge amount on Softbank shares

Masayoshi's error is small sample bias, he probably did not use enough data sample to do his analysis before investing such a huge sum of money on one stock.