LECTURER #ld * Name * Surname * Phone O Email lead- Which one is correct for given ERD? O f. lead g. Oh. None All led by led by FACULTY #ld * Name * Location DEPARTMENT #id * Name Rating O a. There are three relationships in Arc O b. This design prevent Lecturer to led Faculty and Department at the same time O c. Arc belongs to Department entity. O d. Reading relationship of arc: Each Lecturer may lead one and only one Department. e. Optionality cat be different for "lead" in each relationship. Drawing Arc is not properly done. Optionality in Faculty and Department side cannot be different. *

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