Any groups present on a benzene ring can impact the success and regioselectivity of an electrophilic aromatic substitution. Determine which group from the list best fits each activation and directing description. Strongly deactivating meta- director
Moderately deactivating meta- director
Strongly activating ortho-/para- director
Weakly deactivating ortho-/para- director
Weakly activating ortho-/para- director

Explanation:

In electrophilic aromatic substitution, the substituent(s) that favors electrophilic attack is said to be ortho or para to the substituent. Meta directors are deactivators. Altogether, these directors have an integral role to play in the success and regioselectivity of electrophilic aromatic substitution reactions.

From the information given: The;

Strongly deactivating meta- director  ⇒ NO₂ (nitro group)

Moderately deactivating meta- director  ⇒ CN (cyano group)

Strongly activating ortho-/para- director ⇒ OH (hydroxy; group)

Weakly deactivating ortho-/para- director ⇒ -X (halide group)

Weakly activating ortho-/para- director ⇒ - Ph  (phenyl group)