instruction:
You are given a math word problem and you are supposed to make use of mathematical concepts like probability, combinatorics, linear equations, sequences/series, or simple operators like addition, subtraction, division, or multiplication to answer the given question. Choose the best option from the 5 given options and report that option.
question:
Question: The sum of the digits of a two-digit number is 15 and the difference between the digits is 3. What is the two-digit number?

Option A: 69

Option B: 78

Option C: 96

Option D: Cannot be determined

Option E: None of these
answer:
Option D

question:
Question: The sector of a circle has radius of 42 cm and central angle 135o. Find its perimeter?

Option A: 91.5 cm

Option B: 92.2 cm

Option C: 28.9 cm

Option D: 29.2 cm

Option E: 183 cm
answer:
Option E

question:
Question: If PINTU is coded as 79523 in a certain code language, how would you code MUMBO in the same language?

Option A: 43426

Option B: 14236

Option C: 13436

Option D: 14263

Option E: 15263
answer:
Option A