Question

Which is the adjective phrase in the sentence?

In my town, gardeners are using a new type of technique.



A.
of technique


B.
a new type


C.
in my town

Answer 1

"in" is a preposition
"in my town" modifies "are using" as an adverbial phrase

Answer 2

"of" is also a preposition,
"of technique" is adjectival phrase modifying "type."

Answer 3

so A then?

Answer 4

Right, A!