The best and most correct answer among the choices provided by the question is the fourth choice "Four Noble Truths"
The Buddha's first sermon after his Enlightenment centered on theĀ Four Noble Truths, which are the foundation of Buddhism. TheĀ truthsĀ are: TheĀ truthĀ of suffering (dukkha) TheĀ truthĀ of the cause of suffering (samudaya)
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