please provide explanation for the correct option

Which of the following recordings of production costs is correct? Expensed under full costs and expensed under successful efforts Capitalized under full costs Capitalized under successful effort method Expensed under full costs and capitazed under successful efforts Question 7 Which statement is incorrect? Full cost generally, results in a greater deferral of expertes during exploration and development Full cost generally, results in a greater Income taxes during the first years of exploration Successful efforts, generally, results in a greater deferral of expenses during exploration devement and in the Successful efforts, generally, results in a tower income taxes during the first years of explorations Question 8 Gas injection used as a tertiary method of recovery involves injecting nitrogen into the reservoir all of the answers are correct natural gas into the reservoir carbon dioxide into the reservoir