Consider the following statements with respect to userlevel threads and kernel-supported threads: 1. Context switch is faster with kernel-supported threads 2. for user-level threads, a system call can block the entire process 3. Kernel supported threads can be scheduled independently 4. User level threads are transparent to the kernel Which of the above statements are true?

Consider the following statements with respect to userlevel threads an

1.	Consider the following statements with respect to userlevel threads and kernel-supported threads: 1. Context switch is faster with kernel-supported threads 2. for user-level threads, a system call can block the entire process 3. Kernel supported threads can be scheduled independently 4. User level threads are transparent to the kernel Which of the above statements are true?
A.	2, 3 and 4
B.	2 and 3
C.	1 and 3
D.	1 and 2
Answer» B. 2 and 3

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