For this case the translation of the sentence in English is given by:
It is essential that the indigenous communities ___________________ have their lands.
Therefore, we must find the word to fill in the blank.
The correct word is "can".
Therefore, the complete sentence in English is:
It is essential that the indigenous communities can have their lands.
The translation of the sentence in Spanish is:
Es indispensable que las comunidades indígenas puedan tener sus tierras.
Answer:
Es indispensable que las comunidades indígenas puedan tener sus tierras.
D. puedan