If X obliged himself to give his only cellphone, only laptop and only tv to Y on August 1, 2020, and delivers the laptop, in a distinctive obligations the obligation is:

(a)  

True or False: An obligation where only one object is due but the debtor may substitute another object is called facultative obligation

(a)  

Art. 1199. A person alternatively bound by different prestation shall completely perform one of them.

          The (a)   cannot be compelled to receive part one and part of the other undertakings.

Art.1200. The right of choice belongs to the (a)   , unless it has been expressly granted to the creditor.

Art. 1202. The (a)   shall lose the right of choice when among the prestations whereby he is alternatively bound, only one is practicable. (1134)

Art.1200. The (a)   shall have no right to choose those prestations which are impossible, unlawful or which could not have been the object of the obligation.

X obliged himself to give his only cellphone, or his only laptop, or his only tv to Y. a problem will arise if X wants to deliver the cellphone while Y wants to receive the laptop. Thus, if the parties did not stipulate on who will choose, then the right to choose belongs to:

(a)