To answer this question, let's understand the given code and its output.
The code defines a SAS dataset named "student" with three variables: "sno" (student number), "sname" (student name), and "marks" (student marks). The "input" statement is used to read the data values for each variable. The "datalines" statement is used to specify the input data values.
Based on the given input data values, the "student" dataset will contain the following records:
A. sno sname marks { 10 suganya 30} {20 preethi 40} {30 rathna 40} {. .}
B. sno sname marks { 10 suganya 30} {20 preethi 40} {30 rathna 40}
C. sno sname marks { 10 suganya 30} {20 preethi 40} {30 rathna } {40 nitya} {50 manasa}
D. sno sname marks { 10 suganya 30} {20 preethi 40}
Let's go through each option to determine the correct answer:
Option A) sno sname marks { 10 suganya 30} {20 preethi 40} {30 rathna 40} {. .} - This option is incorrect because it includes an additional record with missing values for "sno", "sname", and "marks".
Option B) sno sname marks { 10 suganya 30} {20 preethi 40} {30 rathna 40} - This option is correct because it includes all the given records without any missing values.
Option C) sno sname marks { 10 suganya 30} {20 preethi 40} {30 rathna } {40 nitya} {50 manasa} - This option is incorrect because it includes additional records with missing values for "marks".
Option D) sno sname marks { 10 suganya 30} {20 preethi 40} - This option is incorrect because it does not include all the given records.
Therefore, the correct answer is B. The "student" dataset contains the records { 10 suganya 30}, {20 preethi 40}, {30 rathna 40}.