Two consecutive narrators are omitted at the beginning near the compiler. Which two terms can both apply?

Rejected Reports and Categories of Interrupted Chains

• Mu‘allaq and mu‘dal
• Mu‘allaq and mursal, because both concern beginning omission
• Mu‘dal and mursal khafi, because two links are missing
• Mu‘allaq and tadlis al-shuyukh, because a teacher is hidden