Choose the correct alternatives (more than one can be correct) and write the corresponding letters only:
Indicate all the false statements from the statements given below:
(a). The amount of virtual memory available is limited by the availability of the secondary memory
(b). Any implementation of a critical section requires the use of an indivisible machine- instruction ,such as test-and-set.
(c). The use of monitors ensure that no dead-locks will be caused .
(d). The LRU page-replacement policy may cause thrashing for some type of programs.
(e). The best fit techniques for memory allocation ensures that memory will never be fragmented.