Read the passage and answer the following question:
In many countries, tough competitive exams have long been seen as the ultimate gateway to prestigious colleges and stable careers. These examinations, which demand years of rigorous preparation, are intended to select only the most capable candidates. However, in recent years, their importance appears to be declining for several reasons. Firstly, an increasing number of students and educators argue that these exams test memory and speed rather than true understanding or creativity. Moreover, the stress and pressure linked with clearing such exams often affect students' mental health negatively. With the rise of alternative evaluation methods, like project-based assessments, skill tests, and holistic interviews, many institutions are reconsidering their over-reliance on traditional exams. Additionally, the rapid growth of online education and professional courses has provided students with alternative pathways to success. Today, employers are placing greater value on practical skills, internships, and real-world problem-solving abilities rather than solely on exam scores. While competitive exams still hold significance, their dominance is slowly fading as the world moves towards more balanced and diverse ways of measuring talent.
In the sentence
'These examinations, which demand years of rigorous preparation, are intended to select only the most capable candidates,'
what is the part of speech of the word 'rigorous'?
Show answer & explanation
Correct answer: B
Explanation
The word 'rigorous' modifies the noun 'preparation' in the sentence, describing its quality or characteristic. Words that describe nouns are known as adjectives.