The correct answer is true.
It is true that According to various studies of Near-Death Experiences (NDEs) as discussed in the textbook by Corr & Corr, the majority of descriptions of people who had experienced a NDE were positive.
Although not all the time, most experiences are referred to be positive ones. General description of people that have lived a NDE is that for a moment they find themselves in a tunnel with a brilliant white light at the end. Many of them are finding walking through the tunnel guided by the light and they say that there was no discomfort during the experience.