Is it true that you cant use 'opted' alone?

[drashti]

English Language Tests, Intermediate level

ESL/EFL Test #214 "What comes next (the letter)", question 5

I believe we met for lunch in an expensive restaurant and you ..........

(a) opted the priciest item on the menu
(b) tested the priciest item on the menu
(c) chose the priciest item on the menu
(d) entered the priciest item on the menu

English Language Tests, Intermediate level

ESL/EFL Test #214 "What comes next (the letter)", answer 5

I believe we met for lunch in an expensive restaurant and you chose the priciest item on the menu.

Correct answer: (c) chose the priciest item on the menu

Your answer was: incorrect
I believe we met for lunch in an expensive restaurant and you opted the priciest item on the menu.
_________________________

dear teacher,

if the option is given as 'opted for the priciest item on the menu' then is it right. Is it true that you cant use 'opted' alone.

drashti

[Mister Micawber]

.
Yes, that is correct.
.
_________________
Canadian-American native speaker
who teaches English for a living at Mister Micawber's
ESL cafe: Interview with Mr. Micawber