Basic Vegetarian Sushi

Name: Basic Vegetarian Sushi
Ingredients: 1 c white rice (or sushi rice, if you can get it); 2 c water (or as needed according to sushi rice package); 3 Tbsp rice wine vinegar; 2 Tbsp granulated sugar; 1/2 tsp salt; 4 sheet(s) nori (dried seaweed); 1 medium carrot, julienned and cut into 2-inch strips; 1 medium peeled cucumber, quartered and cut into 2-inch strips; 1 small red pepper, seeded and cut into thin strips; 1 medium avocado, peeled and cut into thin strips; · soy sauce, for serving; · wasabi paste, for serving; · pickled ginger, for serving