Considering the concept of LRU, which letter will be dropped$-$off from d after the letter E is inserted as follows:$>>>$ d$=$LRU$($size$=4)>>>$ d$.$set$(\text{'}$A$\text{'})>>>$ d$.$set$(\text{'}$B$\text{'})>>>$ d$.$set$(\text{'}$C$\text{'})>>>$ d$.$set$(\text{'}$A$\text{'})>>>$ d$.$set$(\text{'}$D$\text{'})>>>$ d$.$set$(\text{'}$E$\text{'})$This type of question contains radio buttons and checkboxes for selection of options. Use Tab for navigation and Enter or space to select the option.optionALetter DoptionBLetter EoptionCLetter AoptionDLetter BoptionELetter C