P' will be the first part of the given sequence as 'I wonder' seems the logical opening of the given sentence. 'P' will be followed by 'S' as it states what the person wonders about, that is, "why the person always has trouble". 'R' will come next as it talks about the 'trouble with scooter'. 'Q' will follow it as it states the time of trouble with scooter, that is, at the time of visit to cinema. Hence, PSRQ is the correct sequence. Thus, option (c) is correct.