Sailors came back from these islands with pictures of Christ on their backs and from then on, tattooing gained (36) ____________popularity.

Đáp án C

Ở đây ta có cụm từ gain in popularity: trở nên phổ biến → chọn đáp án C

Sailors came back from these islands with pictures of Christ on their backs and from then on, tattooing gained in popularity.