In the question given below, two sentences are given with one blank each. From the given answer choices, choose the option which contains the word that fits in both sentences making them grammatically and contextually correct. 1. Through the 1820s, the city continued its struggle to find a potable water _______. 2. Leaves of the drumstick plant and the core stump of the banana plants, which are available locally, are a rich _______ of nutrients and fibres.