The correct answer is: A. PSRQ
The sentence is about the speaker thanking the audience for coming to the meeting and listening to him patiently. The correct sequence of the words is:
- At the end of the lecture
- the speaker thanked the audience
- for sparing their valuable time
- and listening to him
- patiently
Option A, PSRQ, is the only option that has the words in the correct sequence. Option B, QPSR, has the words “the speaker thanked the audience” in the wrong order. Option C, RSPQ, has the words “for sparing their valuable time” in the wrong order. Option D, SRQP, has the words “and listening to him patiently” in the wrong order.