What is meant by "Holy Spirit" (Rūḥ al-Qudus) in this āyah?

Imām Ibn al-Jawzī (d. 597/1201) summarized the scholars' opinions in his book "Zād al-Masīr" as follows:

1. It refers to the angel Gabriel. The word "al-quds" means purity. [Ibn ʿAbbās, Qatādah, al-Ḍaḥḥāk, al-Suddī, and others] Al-Zajjāj offers three explanations as to what is meant by Jesus being supported by Gabriel: (i) In making his proof manifest and the matter of his religion. (ii) In protecting him from the Israelites when they wanted to kill him. (iii) In all his conditions.
2. It refers to the (Divine) Name by which he would bring the dead to life. [Al-Ḍaḥḥāk from Ibn ʿAbbās]
3. It refers to the Gospel (Injīl). [Ibn Zayd]