At the height of his fortune, Brazilian businessman Eike Batista was worth an estimated $$34\mathrm{.}5$ billion. Once the richest man in Brazil, Batista lost that fortune over the span of just one year partly because he bought shares in a firm that only started business $2$ years earlier. In addition His empire began collapsing in $2013$ as the value of many of his oil and gas assets began diminishing because he failed to realize the dynamics of the global energy industry as it relates to the emergence of clean energy, and he suddenly found himself weighed down by debts far surpassing the value of his oil business, OGX. Batista is no longer listed on the Bloomberg list of billionaires. Choose the most appropriate answer below. Batista on the contrary must have relied on analysts that did not use the appropriate forecasting techniques to determine the future of oil and gas industry. In addition, Batista was so overconfident that he refused to diversify his investments Batista obviously must have used a wrong forecasting technique to predict the success rate of the firm that had been in business for only two years. In addition, Batista must have fallen for overconfidence bias being a Billionaire himself with lots of money to through around. Option $($b and $($c$)$ are most correct put together because of the amount of money he lost. Batista must have fallen for conservatism bias and more importantly did not have enough data to analyse the $2$ year old firm that he invested in$.$