Final answer:
The philosophy of reductive materialism concludes that there are no separate spiritual aspects apart from physical processes, hence affirming its existence is false.
Step-by-step explanation:
Reductive materialism, also known as physicalism, is the view that all mental states and properties will eventually be explained by scientific accounts of physiological processes and states. According to reductive materialism, there is no separate spiritual aspect of being human; it posits that everything about the human mind can be understood in terms of physical processes within the brain. Therefore, the correct answer to the question of whether reductive materialism affirms the existence of the spiritual aspect of being human is b) False.
According to reductive materialism, our mental and psychological experiences can be fully explained by neurochemical processes and neural activity without the need for any spiritual or supernatural explanation.