Final answer:
To find out how many students participated in the club, multiply the proportion 0.741 by the total number of 1,000 students, which equals 741 participants.
Step-by-step explanation:
The question involves finding out how many students participated in the club given a certain proportion. With 0.741 of the students participating in the club at Elizabeth's school and a total student population of 1 thousand, we can calculate the number who participated in this way:
Number of Participants = Proportion of Participants × Total Number of Students
Number of Participants = 0.741 × 1,000
Number of Participants = 741
Therefore, the correct answer is B) 741 students.