Answer: B and E
Explanation:
A. 13/17 - Already in lowest terms.
B. 35/133 - Not in lowest terms (both 35 and 133 are divisible by 7).
Simplified:
C. 17/19 - Already in lowest terms.
D. 11/19 - Already in lowest terms.
E. 91/119 - Not in lowest terms (both 91 and 119 are divisible by 7).
So, the fractions that have been simplified to lowest terms are B (35/133) and E (91/119).