PLEASE HELP ME. WHICH OPTION IS IT A), B), C) OR D)?

Question 3 (Mandatory) (10 points) Determine z {2e cos2t} 4 (a) (s- 1)2 +4 s- 1 (b) (s- 1)2 + 4 2(s - 1) (c) $2 + 4 2(s - 1) (d) (s - 1)2 +4 O1) a ( 2) b 3 ) c 0 4) d