Answer:
The correct answer that completes the pattern of numbers is:
d. veintiocho.
Step-by-step explanation:
Following the sequence, we realize that the pattern is formed by the numbers that result in the multiplication of the table of 7.
7x1 = 7 (Siete)
7x2 = 14 (Catorce)
7x3 = 21 (Veintiuno)
...
Since the next number is still a sequence of natural real numbers, the next in the sequence by multiplying 7 is number 4.
7x4 = 28 (Veintiocho)