Coding rules: 1) First symbol based on last vowel, 2) Number = square of consonant count, 3) Letter representing word length in alphabet.

Question: Find the code for 'efficient worker'?
Options:
A. $25i %16f, B. $25i $16f, C. @25i $16f, D. $25i #16f, E. None of these
Answer: "B"