ELFA, GLHA, ILJA, _____, MLNA
D
Correct answer
Explanation
Analyze each position in the four-letter terms. First letters: E→G→I→K→M (skip one letter each time). Middle letters: L→L→L→L→L (constant L). Third letters: F→H→J→L→N (skip one). Last letters: A→A→A→A→A (constant A). For the blank after ILJA: first letter should be K (after I), middle L, third L (after J), last A, giving KLLA.