I heard a sentence: "Enrolling a second major will increase the career option."
But I think it should be enrolling "in" a second major. Am I right? I looked at dictionary examples and I didn't find such a sentence (except with "in").
I heard it in an academic English test, so I don't think they neglected grammar rules. Here is the audio file: https://realpte.com/questionfiles/audio/201529.mp3
I heard it in both American and Australian accents. The above voice is American. This one is Australian: http://rapid1pars.dl1.rapidpars.com/34489/16083175/7t0hnhffzck/enroll.mp3