Question: Today, the most widely studied and recommended pre-exposure prophylaxis is the daily oral co-formulation of which of the following? (a) Tenofovir disoproxil fumarate and emtricitabine (b) Tenofovir disoproxil fumarate and Raltegravir (c) Zidovudine and Abacavir (d) Abacavir and Tenofovir disoproxil fumarate