Core concept: Vocabulary (synonym replacement). Key analysis: 'Vacuuming up' in this context means gathering data systematically. 'Collecting' (A) directly matches this meaning. 'Absorbing' (B) implies assimilation, not acquisition. 'Seizing' (C) suggests forceful taking, which is inappropriate here. 'Scattering' (D) is antonymic. Common mistake: Confusing 'absorbing' with data collection processes.