What will we be using the PSD plot for in this lab? Question 7 options: a) To determine the time and power of waves that predominate the EEG waveform during eyes open and eyes closed conditions. b) To determine the period, cycle, and frequency of waves that predominate the EEG waveform during eyes open and eyes closed conditions. c) To determine how frequent and when alpha waves predominant the EEG waveform during eyes open and eyes closed conditions. d) To determine the time and frequency of waves that predominate the EEG waveform during eyes open and eyes closed conditions. e) To determine the frequency and power of waves that predominate the EEG waveform during eyes open and eyes closed conditions