The missing term is 101.
The sequence is a list of numbers where each number is formed by adding the previous two numbers. So, the first number is 11, and the second number is 10, which is formed by adding 11 and 1. The third number is 101, which is formed by adding 10 and 11. The fourth number is 100, which is formed by adding 101 and 10. The fifth number is 1001, which is formed by adding 100 and 101. The sixth number is 1000, which is formed by adding 1001 and 100. The seventh number is 10001, which is formed by adding 1000 and 1001.
Option A, 101, is the correct answer because it is formed by adding the previous two numbers, 10 and 11.
Option B, 110, is not the correct answer because it is not formed by adding the previous two numbers.
Option C, 111, is not the correct answer because it is not formed by adding the previous two numbers.
Option D, None of these, is not the correct answer because there is a missing term in the sequence, and 101 is the correct answer.