The correlation coefficient (r) between a students' mark in midterm exam and a final exam has been found to be 0.90. In addition, the correlation coefficient (r) between students' time (in hours) spent on social media in a day and their marks in final exams has been found to be -0.87. Consider the following statements: (1) The more time students spend on internet, the higher their score in the final exam. (II) If the time spent on the internet was measured in seconds, the value of correlation coefficient would not change. (III) The relationship of students' final marks exam with their midterm exam marks is stronger than the relationship between students' final marks exam with the amount of time (in hours) students spend on the internet in a day. Which of the above statements is/are correct? a. Both statements I and II b. All the statements are incorrect c. Only statement II d. Only statement ! e. Only statement III