Suggest a reason for the following. the statements are alltrue.
a) we should disable interrupts while hooking interrupt 8h. i.e. while placing its segment and offset in the interrupt vectortable.
b) we need not do this for interrupt 80h.
c) we need not do this when hooking interrupt 8h from insidethe interrupt handler of interrupt 80h.
d) if no eoi is sent from interrupt 9h and no chaining isdone, interrupt 8h still comes if the interrupt flag is on.

Why is it uncommon for users to perform searches directly in database tables? a.)users are discouraged from interacting directly with tables because they might confuse tables with spreadsheets. b.) users are discouraged from interacting directly with tables because this may result in unintended changes to source data. c.)users do not have the technical skills required to perform searches directly in database tables. d.)users do not have the permissions required to perform searches directly in database tables.