Collins was trustee for Indolent under the will of Indolent’s father. Indolent, a middle-age doctor, gave little concern to the management of the trust fund, contenting himself with receiving the income paid him by the trustee. Among the assets of the trust were one thousand shares of ABC Corporation and one thousand shares of XYZ Corporation. About two years before the termination of the trust, Collins, at a fair price and after full explanation to Indolent, purchased from the trust the ABC stock. At the same time but without saying anything to Indolent, he purchased the XYZ stock at a price in excess of its then market value. At the termination of the trust, both stocks had advanced in market value well beyond the prices paid by Collins, and Indolent demanded that Collins either account for this advance in the value of both stocks or replace the stocks. What are Indolent’s rights?